Aribowo, S., Soedarsono, J., Simanullang, S. M., Oktora, A., Warneri, W., Riastuti, R., & Kaban, A. (2026). Unveiling the root cause failure 3-1/2" parted drill in onshore environment. Eastern-European Journal of Enterprise Technologies, 1(1 (139), 59–69. https://doi.org/10.15587/1729-4061.2026.352272