R. Sianturi, S. R. Sinaga, Ariyah Ari Mukti S, heri al mughni, and frederik Ginting, “Design and Performance Testing of an Energy-Saving Mini Refrigerator Prototype with Low Power Consumption Using a Peltier Module”, IJESMI, vol. 1, no. 3, pp. 125–131, Aug. 2026.