Asmara J, Setyarini TA, Iriane GR. Ferry Cruise Scheduler Information System Development Applying Spiral Method. ijics [Internet]. 2021 Aug. 1 [cited 2025 Oct. 27];5(2):123-9. Available from: https://ejurnal.stmik-budidarma.ac.id/index.php/ijics/article/view/3129