Abdurrahman, Abdurrahman, and Muttaqin Al Ridha. “Efektivitas Layanan Pelanggan Melalui WhatsApp Group Pada BPJS Kesehatan Banda Aceh”. Empiricism Journal 6, no. 3 (September 30, 2025): 1461–1474. Accessed January 30, 2026. https://journal-center.litpam.com/index.php/empiricism/article/view/3784.