Subekti, Henk, Purnomosidi Purnomosidi, Edi Untoro, Arya Dwi Candra, and Mefriadi Mefriadi. 2023. “ANALYSIS OF CEMENTING WELLS X-1 and Y-1 USING MULTIFUNCTION ULTRASONIC IMAGING LOGGING TOOL”. Journal of Petroleum and Geothermal Technology 4 (2):62-70. https://doi.org/10.31315/jpgt.v4i2.10919.