NINGRUM, S.; PRAYITNO, S. A. . Chemical Characterization of Coffee from Several Region of Indonesia (Cafein value, pH and Total Acid). Journal of Tropical Food and Agroindustrial Technology, [S. l.], v. 4, n. 02, p. 61–68, 2023. DOI: 10.21070/jtfat.v4i02.1625. Disponível em: https://jtfat.umsida.ac.id/index.php/jtfat/article/view/1625. Acesso em: 9 may. 2025.