Kuncoro Y. Analysis Of The Influence Between Service Quality And Promotion On Customer Loyalty Of PT. Pelni Passenger Ships. j. manaj. buss. transp. logist. [Internet]. 2025 Apr. 5 [cited 2026 Aug. 9];10(1):11-20. Available from: https://journal.itltrisakti.ac.id/index.php/jmbtl/article/view/1511