DEVELOPMENT OF LOW COST ADSORBENTS FOR THE REMOVAL OF WATER HARDNESS; AN EXPERIMENTAL STUDY AND MODELING OF NEWLY DEVELOPED ADSORBENT CONSIST OF COCONUT SHELL ACTIVATED CARBON, POLYSTYRENE RESIN AND CHEMICALLY MODIFIED SUGAR CANE BAGASSE. JPIChE. 2017;45(2). Accessed August 12, 2026. https://www.piche.org.pk/journal/index.php/jpiche/article/view/299