Kamaludin, M., M. A. S. Razali, N. F. Haron, and A. A. Azlina. “Energy Efficiency Labelling: Investigating Students’ Preferences and Awareness on the Energy-Efficient Electrical Appliances in Hostel”. International Journal of Energy Economics and Policy, vol. 11, no. 2, Feb. 2021, pp. 300-8, https://www.econjournals.com/index.php/ijeep/article/view/10824.