Daud, M., A. Hasibuan, W. V. Siregar, and A. Setiawan. “Economic Calculations of Electricity Using AC System on Residential Load”. Andalasian International Journal of Applied Science, Engineering and Technology, vol. 2, no. 3, Oct. 2022, pp. 140 -48, doi:10.25077/aijaset.v2i03.56.