A. O. Shirale, A. K. Biswas, and B. P. Meena, “Glauconite: a potential source for potash”, Ind. Farming, vol. 67, no. 9, Oct. 2018, Accessed: Oct. 20, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IndFarm/article/view/84331