Ahmad Rifki, Soerya Respationo, Siti Nurkhotijah, Erniyanti, Ramlan. OPTIMIZING IMMIGRATION PUBLIC SERVICES THROUGH ADMINISTRATIVE AUTHORITY AT BATAM IMMIGRATION CHECKPOINTS. JISHUP [Internet]. 2026 Sep. 6 [cited 2026 Sep. 7];4(4):2253-64. Available from: https://jishup.org/index.php/ojs/article/view/423