[1]
Iwan Sahat Maruli Simanjuntak, Erniyanti, and 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)”, IJSET, vol. 4, no. 8, pp. 3302–3312, Sep. 2025.