Abd El-Salam, M. M., El-Naggar H. M. & Hussein, R. A. (2009). "Environmental education and its effect on the knowledge and attitudes of preparatory school students." J Egypt public health assoc. Vol. 84. No 3&4. 343-367.
BarehBar, A; Behroozirad, B; Bahrebar, Mostafa & Amini Nasab, S. M. (2013). “Investigating the position of environmental awareness in educational system of Kohgeloye and Boyrahamd city schools”. The Environment journal. Year 4. Issue 7. 65-72.
Bell, F. (2010). "Network theories for technology-enabled learning and social change: Connectivism and actor network theory." Paper presented at the Seventh International Conference on Networked Learning. Aalborg. Denmark.
Brown, L. R. (2008). "rescuing a planet under stress and a civilization in trouble." (translated by Hamid Taravati). Tehran. Iranian student book agency.
Erzengin, O. U. & Kete, E. C. (2013). "A study on developing an environmental behavior and attitude scale for university students." Journal of educational and instructional studies
in the world. Volume: 3 Issue: 2. PP. 49-56.
Eskandari, H., Fardaneh, H., Sajadi, S. M., Sadegh Zadeh Ghamsari, A. R. & Beheshty, S. (2011). "Connectivism and explanation and critique of its epistemological basis." Journal of education. Vol. 17. 29-50.
Farrokhian, F., Hosseinpor, M. & Soleimani, A. (2013). "Analysis the role of educational level in the middle school teachers' attitudes towards criteria related to environmental education." Environmental education and sustainable development. Vol 2. No 1. 31-38.
Hamidian, A. (2011). "Importance of attention to environmental culture of students (case study university of Tehran)." [On line 2015-08-15].
Kaiser, F., S. Wolfing, and U. Fuhrer. (1999). "Environmental attitude and ecological behaviour." Journal of Environmental Psychology. 19. no. 1: 1–19.
Kalof, L. (1996). "Understanding the social construction of environmental concern; Human Ecology Review". Vol. 4. No. 2. PP. 101-105.
Kollmuss, A., and J. Agyeman. (2002). "Mind the gap: Why do people act environmentally and what are the barriers to pro-environmental behavior?" Environmental Education Research 8. no. 3: 239–60.
Kolodner, J. L., & Nagel, K. (1999). "The design discussion area: a collaborative learning tool in suport of learning from problem-solving and design activities." International Society of the Learning Sciences.
Lateh, H. & Muniandy, P. (2010). "Environmental education (EE): current situational and the challenges among trainee teachers at teachers training institute in Malaysia." Procedia Social and Behavioral Sciences. No 2.1896-1900.
Martín-López, B., C. Montes, and J. Benayas. (2007). "The non-economic motives behind the willingness to pay for biodiversity conservation." Biological Conservation. 139. nos. 1–2: 67–82.
Meiboudi, H., Omidvar, B., Enayati, A. A. & Rashidi, S. (2013). "Does the kind of primary school have effect on students’ environmental awareness?" Environmental education and sustainable development. Vol 1. No 4. PP.10-19.
Mokhtari Malekabad, R, Abdulahi, A-S. Sadeghi, H. (2013). “Investigation and recognition of environmental behaviors, the case study for the city of Isfahan”. The magazine of Research and civil management. Year 5. Issue 18. PP.1-20 .
North American association for environment education. (2011). "Excellence in environmental education". guidelines for learning K-12, exective summary and self-assessment tool. Washington D. C. [On line 2015-08-15]
Plon, W. V. (2006). "Cinnectivism: a new learning theory?" University of Twente. [On line 2015-08-15].
Pooley, J. A. & Psych, M. (2000). "Environmental Education and Attitudes Emotions and Beliefs are what is needed." Environment and Behavior. vol. 32 no. 5. PP.711-723.
Price, E.A., J. Vining, and C.D. Saunders. (2009). "Intrinsic and extrinsic rewards in a nonformal environmental education program." ZOO Biology 28. No. 5: PP.361–376.
Ramazai Ghawamabadi, M. H. (2012). “Strategic investigation of conserving the environment in Iran. The necessities and dead ends." Strategic journal. Period 21. Issue 65. PP 233-257.
Rezaei, E., Nasre, Sh. & Armand, M. (2011). "Connectivism Learning Theory and its Application in the Development of University Textbooks." Academic research and writing books. Issue 2.PP. 81-94.
Saunders, C.D., Brook, A.T. and Myers, O.E. (2006). "Using psychology to save biodiversity and human well-being." Conservation Biology 20. No. 3.PP. 702–705.
Sayed, A. Sharifah Intan, S. Halim, l. (2010). "Development of instrument measuring the level of teachers' Pedagogical Content Knowledge (PCK) in environmental education." Procedia Social and Behavioral Sciences. No. 9. PP.174-178.
Siemens, G. (2004). "Connectivism: A Learning Theory for the Digital Age." elearnspace. [On line 2015-08-15].
Simon-Brown, V. (2004). "Intelligent consumption: Addressing consumer responsibilities for natural resources and beyond." Journal of Extension. 42(5). [On line 2015-08-15].
Stapp, W. B., Bennett, D., Bryan, W. Jr., Fulton, J., MacGregor, J., Nowak, P., Swan, J., Wall, R., & Havlick, S. (1969). "The concept of environmental education. Journal of Environmental Education." 1(1). PP.30-35.
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