Dr. Abhimanyu Kumarm, and Lalit Kumar Goyal. “To Study the Role Played by Green House Gasses on Climatic Change and Its Further Effect on Agriculture”. Global Journal of Human-Social Science, vol. 13, no. B4, Mar. 2013, pp. 61-66, https://socialscienceresearch.org/index.php/GJHSS/article/view/647.