KHWAJA , MAHMOOD A., and ISMAT G. KHATTAK. “THERMO GRAVIMETRIC AND INFRARED SPECTRAL STUDIES FOR RAPID EVALUATION OF ROCK PHOSPHATES”. Biological Sciences - PJSIR 37, no. 9 (June 9, 2022): 365–370. Accessed November 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/2716.