-, Sujono, Riski Sihab, and Nurul Yaqin. “Design of Automatic Coffee and Milk-Making Machine Based on Arduino”. SAINTEKBU 15, no. 02 (August 12, 2023): 17–26. Accessed May 9, 2024. https://ejournal.unwaha.ac.id/index.php/saintek/article/view/3581.