“ANALYSIS AND FABRICATION OF AN INSTANTANEOUS WATER COOLER BY USING TERTAFLUOROETHANE AND ISOBUTANE (R134a) ”. International Engineering Journal For Research & Development 6, no. 2 (May 8, 2021): 7. Accessed October 5, 2026. https://iejrd.com/index.php/iejrd/article/view/1915.