Evaluation of the Implementation of Elderly Posyandu in the Working Area of Petumbukan Health Center, Deli Serdang Regency. JURNAL KESMAS DAN GIZI (JKG), [S. l.], v. 8, n. 2, p. 789–794, 2026. DOI: 10.35451/zzb4w573. Disponível em: https://ejournal.medistra.ac.id/index.php/JKG/article/view/3201. Acesso em: 26 apr. 2026.