Simpen, I Nengah, I Made Sutha Negara, and Sofyan Dwi Jayanto. 2020. “ACTIVATED ADSORBENT PREPARED FROM BOVINE BONE WASTE: PHYSICO-CHEMICAL CHARACTERISTICS, ISOTHERM AND THERMODYNAMICS ADSORPTION OF CHROMIUM IONS IN WASTEWATER”. International Journal of Engineering Technologies and Management Research 7 (3):1-11. https://doi.org/10.29121/ijetmr.v7.i3.2020.534.