Arief Hari Samudro, Sri Umiyati, and 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”. SOSIOEDUKASI : JURNAL ILMIAH ILMU PENDIDIKAN DAN SOSIAL 15, no. 3 (September 30, 2026): 1948–1958. Accessed October 14, 2026. https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/9409.