Kianpour, Kamyar, and Maryam Asghari . “Importance of Price for Buying Environmentally Friendly Products”. Journal of Economics and Behavioral Studies 4, no. 6 (June 15, 2012): pp. 371-375. Accessed January 21, 2025. https://ojs.amhinternational.com/index.php/jebs/article/view/337.