., Moejiono; SANTOSA, Agus Dwi; HARTANTI, Lusia Permata Sari; PUTRI, Indah Ayu Johanda; AMRULLAH, Romanda Annas. Crew Availability Ratio in Indonesian-Flagged Vessels: A Discrete Model Analysis of Sign-On–Sign-Off Cycle Effects on Sustainable Ship Operations . Journal of Cultural Analysis and Social Change, [S. l.], v. 11, n. 2, p. 22–30, 2026. DOI: 10.64753/jcasc.v11i2.4827. Disponível em: https://jcasc.com/index.php/jcasc/article/view/4827. Acesso em: 6 may. 2026.