Siregar, Z.A. et al. 2020. FERMENTASI BIJI KOPI ARABIKA (Coffea arabica L.) DENGAN PENAMBAHAN BAKTERI ASAM LAKTAT (Lactobacillus sp). Sains Natural: Journal of Biology and Chemistry. 10, 2 (Sep. 2020), 87–94. DOI:https://doi.org/10.31938/jsn.v10i2.285.