Fakhriyansyah, Aji Syarif, Johannes Johannes, and Husni Hasbullah. “Evaluating Customer Customer Service System through Customer Visit and Customer Call Methods: A Case in Indonesian Port Industry”. Jurnal Ilmiah Manajemen dan Bisnis 12, no. 2 (August 9, 2026): 225–234. Accessed August 24, 2026. https://publikasi.mercubuana.ac.id/index.php/jimb/article/view/36599.