“Some Aspects of Ecological and Economic Education in the Process of Studying Geography in Pedagogical University”, Mediterr. J. Soc. Sci., vol. 6, no. 1 S3, p. 208, Feb. 2015, Accessed: May 03, 2024. [Online]. Available: https://www.richtmann.org/journal/index.php/mjss/article/view/5701