Hambali, A.; Tambun, M. S. M. O. S. S.; Kurniawan, M. A.; Triyanto, I. R.; Ikhsan, M. R. Designing and Developing Leak Detection Tool Prototype for Liquefied Petroleum Gas Cylinders. Int. J. Eng. Technol. Nat. Sci. 2024, 6, 129-138.