Nandan Singh. 2014. “Studies on Vegetational Analysis and Regeneration Status of Pinus Roxburghii, Roxb. And Quercus Leucotrichophora Forests of Nainital Forest Division”. Global Journal of Science Frontier Research 14 (C3):41-47. https://journalofscience.org/index.php/GJSFR/article/view/1144.