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Gede Widihati, Ida Ayu, Manurung, Manuntun, AND Yunilawati, Yunilawati. " PREPARASI DAN KARAKTERISASI ARANG SABUT KELAPA SERTA APLIKASINYA SEBAGAI ADSORBEN LOGAM Cr(III)" CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) [Online], Volume 10 Number 1 (12 July 2022)