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KUALITAS DAMAR POHON POOTI (Hopea Gregaria) BERDASARKAN UJI VISUAL, BILANGAN ASAM, DAN KADAR ABU: Quality of Pooti Dammar Resin (Hopea Gregaria) Based on Visual Test, Acid Number, and Ash Content. perennial 2021, 17 (1), 1-4. https://doi.org/10.24259/perennial.v17i1.12646.