Sugiyanto S. Analisis Kualitas SDM dan Layanan Keagenan Perusahaan Pelayaran Nasional di Indonesia. j. manaj. buss. transp. logist. [Internet]. 2021 May 27 [cited 2026 Aug. 9];7(2). Available from: https://journal.itltrisakti.ac.id/index.php/jmbtl/article/view/659