Bajet, Jr., Manuel A., and Nelson Bajet. “Development of Domestic Refrigerator Trainer: An Instructional Material for Beginner Technician”. JPAIR Multidisciplinary Research 16, no. 1 (March 15, 2014): 82–99. Accessed November 3, 2025. https://philair.org/index.php/jpair/article/view/272.