VENUGOPAL, T., L. GIRIDHARAN, and M. JAYAPRAKASH. “A New Digestion and Chemical Separation Technique for Rapid and Highly Reproducible Determination of Major Elements in Limestone Sample”. Asian Journal of Chemistry 20, no. 1 (March 30, 2010): 265–272. Accessed October 3, 2024. https://asianpubs.org/index.php/ajchem/article/view/19394.