“Identifications of Wavelenght, Absorbance and Reflectance of Robusta Coffee During the Postharvest Process”. Salaga Journal 1, no. 2 (December 24, 2023): 55–64. Accessed April 30, 2026. https://agritech.unhas.ac.id/ojs/index.php/salaga/article/view/1367.