Kurbah, Ibajanai, and S. P. Dixit. “Soil Potassium Fractions As Influenced by Integrated Fertilizer Application Based on Soil Test Crop Response under Maize-Wheat Cropping Systems in Acid Alfisol”. International Journal of Economic Plants, vol. 6, no. Feb, 1, Feb. 2019, pp. 025-9, https://ojs.pphouse.org/index.php/IJEP/article/view/4581.