Rai, S.K., and S.P. Pandey. “Natural Resource Management for Sustainable Agricultural Development: A Study of Agro-Ecological Zoning for Rupandehi District”. Journal of the Institute of Agriculture and Animal Science 25 (March 1, 2004): 23–30. Accessed May 9, 2024. https://www.nepjol.info/index.php/JIAAS/article/view/383.