Helida, Yeyen, Chin Peng Ching, and Adekunle Oyewo. “Development of a Simple Stirling Engine Demonstration Tool on the Subject of Thermodynamics ”. Journal of Educational Technology and Learning Creativity 1, no. 2 (December 22, 2023): 59-67. Accessed May 18, 2024. https://cahaya-ic.com/index.php/JETLC/article/view/790.