Kumar Pandey, Pramod, C.S. Pant, and S.P.S. Mehta. “Physico-Chemical Characteristics of the Soils of the Ram Nagar Region of Uttaranchal (India)”. Asian Journal of Chemistry 18, no. 4 (March 30, 2010): 3204–3206. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/20793.