Vikaspal Singh. 2013. “Comparative Study of Vegetation Status and Species Richness Around Alakhnanda and Bhagirathi Valley Under Kotli - Bhel Hydroelectric Power Projects (IA And IB), Uttarakhand, India”. Global Journal of Science Frontier Research 13 (H2):15-22. https://journalofscience.org/index.php/GJSFR/article/view/995.