Nugraha, Ramdhan. “Development of Automatic Cryotherapy Device Using Arduino ATmega 328 Based Microcontroller for Facial Skin Care”. Electromedic, Journal of Medical Electronic 2, no. 1 (June 7, 2025): 11–17. Accessed September 15, 2025. https://jurnal.ikatemi.or.id/elc/article/view/39.