Maharmi, Benriwati, Toriq Kardova, and Ermawati. “Development Of Cost-Saving Energy For Home Lighting Based Microcontroller and RTC”. International Journal of Electrical, Energy and Power System Engineering 2, no. 2 (June 18, 2019): 20-24. Accessed May 18, 2022. https://ijeepse.id/journal/index.php/ijeepse/article/view/30.