Subedi, S., and D. Dhakal. “Economics of Poultry Manure As an Alternative to Chemical Fertilizer for Agricultural Production in Nepal”. Journal of the Institute of Agriculture and Animal Science 33 (August 10, 2018): 259–268. Accessed May 1, 2024. https://www.nepjol.info/index.php/JIAAS/article/view/20713.