Purba, Rafika, and Risa Kartika Lubis. “Sosialisasi E- Commerce Bagi Remaja Melalui Media Speaking Activity Di MTSN 1 Deli Serdang”. Jurnal Pengabdian kepada Masyarakat Nusantara 1, no. 1 (September 29, 2020): 1-13. Accessed November 7, 2025. http://ejournal.sisfokomtek.org/index.php/jpkm/article/view/44.