D. P. Battu, Adi Tonggiroh, and Meutia Farida, “ANALYSIS OF GAS RATIO DRILLING TO IDENTIFY THE G-80 SANDSTONE RESERVOIR FOR WELL CORRELATION IN THE SEMBERAH FIELD, KUTAI BASIN”, INTERNATIONAL JOURNAL OF GEOMATE, vol. 29, no. 135, pp. 164–171, Nov. 2025.