“Perancangan Alat Uji Kadar Air Pada Biji Kopi (Coffea Sp) Berbasis Mikrokontroler Arduino Uno”. Journal of Agricultural Engineering and Technology 2, no. 4 (Desember 23, 2024). Diakses Desember 9, 2025. https://journal.unram.ac.id/index.php/agent/article/view/9001.