HAHOLONGAN, Rutinaias; MAKSUDI, Ade Mulyati; YOESDITIAN, Rizky; NURATIKAH, Indah; SETIAWAN, Vonny Leonita Wisnu Luqman. PENYULUHAN PENINGKATAN KOMPETENSI BAGI PENGURUS OSIS PADA MTS NEGERI 21 JAKARTA TIMUR. BESIRU : Jurnal Pengabdian Masyarakat, [S. l.], v. 1, n. 4, p. 154–159, 2024. DOI: 10.62335/faefps27. Disponível em: https://manggalajournal.org/index.php/BESIRU/article/view/97.. Acesso em: 31 may. 2026.