Kiu, Jeffrey, and Mohd Zainizan Sahdan. “Photovoltaic Cell Sizing Software Development by Android Studio for Solar Powered Tube-Well System”. Evolution in Electrical and Electronic Engineering, vol. 2, no. 2, Nov. 2021, pp. 18-28, https://penerbit.uthm.edu.my/periodicals/index.php/eeee/article/view/3840.