WAHYUNINGSIH, Tri; AMALIA, Yasmina; FAHREZI, Mahendra Ivan; PUTRA, Farhan; KASIH, Zikra Fitri; ALFARIZI, Ahmad; SYAH, Rinaldi Zainun. The Effect of HNO3 Concentration Variations on the Recovery of REEs from Coal Fly Ash Through Hydrometallurgical Process. RSF Conference Series: Engineering and Technology, [S. l.], v. 4, n. 1, p. 561–570, 2025. DOI: 10.31098/cset.v4i1.1080. Disponível em: https://proceeding.researchsynergypress.com/index.php/cset/article/view/1080. Acesso em: 7 apr. 2026.