Haryono, S. 2018. Optimasi Hidrolika Sumur “SH” Lapangan “U” Kalimantan Timur dengan Metode Bit Hydroulic Horse Power. Jurnal Offshore: Oil, Production Facilities and Renewable Energy. 2, 2 (Dec. 2018), 1–7. DOI:https://doi.org/10.30588/jo.v2i2.399.