Khadka, Yagya Gajadhar, Suresh Kumar Rai, and Sambhu Raut. 2010. “Long Term Effects of Organic and Inorganic Fertilizers on Rice under Rice-Wheat Cropping Sequence”. Nepal Journal of Science and Technology 9 (June):7-13. https://doi.org/10.3126/njst.v9i0.3156.