Y. Tri Hadi Mulyana, R. Samudera Febrian, I. Ahmad Fahrezi, S. Wulandari, and S. Dwi Prasetyo, “Numerical Analysis of Thermal Distribution in a Solar-Powered Food Warming Prototype Utilizing PTC Heating Elements: A Comparative Study of Natural and Forced Convection in an Enclosed Chamber”, Semarak Clim. Sci. Lett., vol. 8, no. 1, pp. 1–13, Jul. 2026.