Rahman, Md Mizanur, and Jatish Biswas. “Reactive Nitrogen in Crop, Fishery and Livestock Sectors of Bangladesh”. The Agriculturists 18, no. 1 (September 29, 2020): 144-163. Accessed May 6, 2021. https://www.banglajol.info/index.php/AGRIC/article/view/49467.