“EFEKTIVITAS ALAT PENYANGRAI BIJI KOPI MODERN CITA RASA TRADISIONAL BERBASIS ARDUINO UNO”. Nusantara of Engineering (NOE) 4, no. 2 (November 11, 2021): 137–142. Accessed April 18, 2025. https://ojs.unpkediri.ac.id/index.php/noe/article/view/16752.