Mannan, A., Hussain, S. . I., Ehsan, S. and Khan, M. . S. (2004) “SPECTROSCOPIC AND CHEMICAL EVALUATION OF CLAY MINERALS AND THEIR SUITABILITY FOR THE MANUFACTURING OF ORGANIC CLAY, MEDICINAL CLAY AND PILLARED CLAY”, Biological Sciences - PJSIR, 47(6), pp. 407–416. Available at: https://v2.pjsir.org/index.php/biological-sciences/article/view/1561 (Accessed: 22 May 2024).