K. D. Sriningrum, R. A. Amrullah, E. N. S. Agustina, and I. Sianturi, “Strategy to Improve the Quality of Online Seaman Book Services at the Harbor Master and Port Authority (KSOP) Class II of Benoa”, RIGGS, vol. 4, no. 2, pp. 3081–3086, Jun. 2025.