Laily Nurfiana Wardhani, and Nurul Azizah. “Prosedur Clearance In Dan Clearance Out TugBoat – Tongkang PT. Patria Maritime Lines Oleh PT. Barito Samudra Sejahtera Cabang Banjarmasin”. Jurnal Ilmu Manajemen, Ekonomi dan Kewirausahaan 3, no. 2 (July 22, 2023): 243–251. Accessed May 15, 2024. https://journal.amikveteran.ac.id/index.php/jimek/article/view/1804.