Siallagan, Asihon, Anita Maharani, and Maya Maria. “Customer Preference Analysis: Why Are R1 450VA Electricity Customers Not Interested in Increasing Power? (A Case Study of PT PLN Batam Customers)”. Dinasti International Journal of Economics, Finance & Accounting 6, no. 4 (September 11, 2025): 3313–3323. Accessed April 21, 2026. https://www.dinastipub.org/DIJEFA/article/view/5152.