Sarada Devi, S., P. Tuppad, and A. Kishore. “A Review of the Effects of Phosphorus and Sulphur Levels on Growth, Yield, and Quality of Gram and Beans: Phosphorus and Sulphur Levels on Gram and Beans”. The Journal of Rural Advancement, vol. 10, no. 01, Apr. 2022, pp. 19-28, http://jra.idtra.co.in/index.php/jra/article/view/33.