Rahayu, D.; Sari, A. V. Sosialisasi Literasi Digital: Upaya Pencegahan Dampak Negatif Gawai Terhadap Kesejahteraan Mental Siswa SMA Negeri 21 Medan: Digital Literacy Socialization: Efforts to Prevent the Negative Impact of Gadgets on the Mental Well-Being of Students at SMA Negeri 21 Medan. Pengabdianmu J Ilmiah Pengabdian Masyarakat 2026, 11.