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Umar, D. F.; Zulfahmi, Z.; Suganal, S.; Madiutomo, N.; Wijaya, T.; Huda, M.; Setiawan, L.; Daranin, E. A.; Gunawan, G.; Monika, I. Two-Stage Palm Kernel Shell Washing With Water and Acetic Acid As Preparation of Co-Firing System With Coal. Rud.-geol.-naft. zb. 2024, 39, 1-10.