Tinambunan, Delila Agustin, and Sukardi Sukardi. “Microcontroller-Based Smart Locker Prototype”. JTEIN: Jurnal Teknik Elektro Indonesia 5, no. 2 (December 1, 2024): 464–475. Accessed May 18, 2026. https://jtein.ppj.unp.ac.id/index.php/JTEIN/article/view/730.