Rao, D. Rama, V. Siddaiah, and P.V.S. Machiraju. “Soil Quality Assessment and Its Suitability for Crop Production”. Asian Journal of Chemistry 31, no. 1 (November 30, 2018): 169–175. Accessed May 18, 2024. https://asianpubs.org/index.php/ajchem/article/view/31_1_27.