Kurniawan, Guntur, and Jamaaluddin Jamaaluddin. “Dispenser Pintar Dengan Pembayaran Tanpa Uang Tunai ”. Innovative Technologica: Methodical Research Journal 2, no. 3 (September 30, 2023): 15. Accessed April 21, 2025. https://innovative.pubmedia.id/index.php/Innovative/article/view/89.