Fitrianti, F. (2015). Analisis Kualitas Bonding Cement Di Zona Produktif Sumur BA 147 Menggunakan Ultra Sonic Imager Tool (USIT) Log di Lapangan BOB PT Bumi Siak Pusako-Pertamina Hulu. Journal of Earth Energy Engineering, 4(2), 29–43. https://doi.org/10.22549/jeee.v4i2.636