Meena, Inderraj, et al. “Effect of Phosphorus and Sulphur on Yield and Quality of Soybean (Glycine Max) in Typic Haplustept”. Annals of Agricultural Research, vol. 36, no. 1, Feb. 2016, pp. 98-102, https://epubs.icar.org.in/index.php/AAR/article/view/54259.