USMAN , T. H. ., . T. W. AHMAD, . . . M. . MUMTAZ, . M. T. . MOTAN, and . A. . YOUSAFZA. “ACTIV ATED CARBON FROM INDIGENOUS INFERIOR WOODS Part- V. Granular Activated Carbon Preparation and Liquid Phase Characterization”. Biological Sciences - PJSIR, vol. 37, no. 9, June 2022, pp. 371-3, https://v2.pjsir.org/index.php/biological-sciences/article/view/2717.