Yadav, R Ram, and Vikram Singh. “Legendary Old Conifer Trees in Western Himalaya: Environmental Chronicles”. INTERNATIONAL JOURNAL OF PLANT AND ENVIRONMENT 7, no. 04 (December 31, 2021): 243–248. Accessed August 17, 2025. https://www.ijplantenviro.com/index.php/IJPE/article/view/1368.