IWAN SAHAT MARULI SIMANJUNTAK; ERNIYANTI; DAHLAN. LEGAL ANALYSIS OF THE IMPACT OF SINGAPORE’S VISA-FREE VISIT (BVK) AND PERMANENT RESIDENCE (PR) POLICIES ON THE SECURITY AND ECONOMIC STABILITY OF BATAM CITY (A RESEARCH STUDY IN BATAM CITY). International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET), [S. l.], v. 4, n. 8, p. 3302–3312, 2025. DOI: 10.54443/ijset.v4i8.1137. Disponível em: https://ijset.org/index.php/ijset/article/view/1137. Acesso em: 11 sep. 2025.