Wahyinto, Indi, 		Aritonang, Anthoni, AND 		Zaharah, Titin.
" Extraction and Characterization of Fe2O3 from Red Mud PT. Indonesia Chemical Alumina West Kalimantan" <em>BERKALA SAINSTEK</em> [Online], Volume 10 Number 3 (4 October 2022) <span style="display: none;">
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