Azisah, Nur, et al. “Placement And Needs Analysis Cathodic Protection System On Offshore Subsea Gas Pipeline From Pemping Island to Tanjung Uncang Batam”. Zona Laut Jurnal Inovasi Sains Dan Teknologi Kelautan, vol. 1, no. 3, Nov. 2020, pp. 57-63, doi:10.62012/zl.v1i3.11978.