PARNINGOTAN SITUMEANG; MEGAWATI MANULLANG; TIFFANY TAMBA. PENGARUH SUMBER DAYA MANUSIA PENATUA TERHADAP KEEFEKTIFAN PELAYANAN DI GPP SIARO. Jurnal Pendidikan Sosial dan Humaniora, [S. l.], v. 4, n. 4, p. 7134–7139, 2025. Disponível em: https://publisherqu.com/index.php/pediaqu/article/view/3009. Acesso em: 13 may. 2026.