BHATTACHARJEE, SARAJ, A. K. SINGH, MANOJ KUMAR, and S. K. SHARMA. 2014. “Phosphorus, Sulfur and Cobalt Fertilization Effect on Yield and Quality of Soybean (Glycine Max L. Merrill) in Acidic Soil of Northeast India”. Indian Journal of Hill Farming 26 (2). https://epubs.icar.org.in/index.php/IJHF/article/view/36757.