Arief Hari Samudro, Umiyati S, Elli Setiyo Wahyuni. IMPLEMENTATION OF STANDARD OPERATING PROCEDURES FOR THE ISSUANCE OF SEAMEN’S BOOKS IN ACHIEVING EXCELLENT SERVICE AT THE TANJUNG PERAK MAIN PORT AUTHORITY. SJIIPS [Internet]. 2026 Sep. 30 [cited 2026 Oct. 14];15(3):1948-5. Available from: https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/9409