Purba, Miduk, and Angelia Maharani Purba. 2020. “Utilization of Solar Panels As an Energy Source in the Egg Hatcher Temperature Control Automation System: Utilization of Solar Panels As an Energy Source in the Egg Hatcher Temperature Control Automation System”. Jurnal Mantik 4 (1):1-6. https://www.iocscience.org/ejournal/index.php/mantik/article/view/510.