Hussain, MJ, AJM Sirajul Karim, ARM Solaiman, and MM Haque. “Effects of Nitrogen and Boron on the Yield and Hollow Stem Disorder of Broccoli (Brassica Oleracea Var. Italica)”. The Agriculturists 10, no. 2 (December 25, 2012): 36–45. Accessed June 18, 2024. https://www.banglajol.info/index.php/AGRIC/article/view/13140.