“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” (2025) Jukeshum: Jurnal Pengabdian Masyarakat, 5(1), pp. 141–146. doi:10.51771/jukeshum.v5i1.1198.