UNPIKUL, B.; KHANAPANG, T.; PACHSILA, P.; AUIPAKO , W.; JUNLABUDDEE, P. Design and Development of a Semi-Automatic Robusta Coffee Bean Sorting Machine with Optimal Operating Conditions Determined by Response Surface Methodology. Thai Industrial Engineering Network Journal, [S. l.], v. 12, n. 1, 2026. Disponível em: https://ph02.tci-thaijo.org/index.php/ienj/article/view/265032. Acesso em: 16 sep. 2026.