R. Jacinto, Iza 'RJ'. “Development and Evaluation of Portable Heat Kit: Enhancing Thermodynamics Laboratory Instruction”. Lunday: Research Journal of the Graduate School of Bulacan State University, vol. 8, no. 1, Aug. 2026, p. 8, https://lunday.bulsu.edu.ph/index.php/lunday/article/view/170.