“Application of QR Code In Improving Public Knowledge About Beyond Use Date (BUD) of Medicine In Tanjung Rejo Village Percut Sei Tuan Deli Serdang: Penerapan QR Code Dalam Peningkatan Pengetahuan Masyarakat Tentang Beyond Use Date (BUD) Obat Di Desa Tanjung Rejo Percut Sei Tuan Deli Serdang”. Jukeshum: Jurnal Pengabdian Masyarakat 5, no. 1 (January 31, 2025): 141–146. Accessed November 13, 2026. https://ojs.unhaj.ac.id/index.php/jukeshum/article/view/1198.