Rangkuty, Dewi Mahrani, Hidayati Purnama Lubis, Herdianto Herdianto, and Mita Mutiara Zora. “Pelatihan Digital Marketing WhatsApp Group Bagi Kelompok Usaha Rumah Tangga Desa Klambir Lima Kebun Kabupaten Deli Serdang Provinsi Sumatera Utara”. Jurnal Pengabdian UNDIKMA 3, no. 1 (May 18, 2022): 43–49. Accessed August 15, 2025. https://e-journal3.undikma.ac.id/index.php/jpu/article/view/5068.