K. SENGUPTA, S. NANDI, and N. CHAKRABORTY, “Effect of sulphur-containing fertilizers on productivity of rainfed greengrarn (phaseolus radiatus)*”, Indian J Agri Sci, vol. 71, no. 6, Apr. 2014, Accessed: Oct. 26, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAgS/article/view/39896