Arsyan RGR, Kurniawardhani A, Paputungan IV. Classification of Roasting Maturity Levels of Coffee Beans Using CNN Method Based on Mobilenetv2. jrssem [Internet]. 2026 Jan. 12 [cited 2026 Apr. 18];5(6):9748-59. Available from: https://www.jrssem.publikasiindonesia.id.solusipublish.com/index.php/jrssem/article/view/1269