NAINGGOLAN, E. M.; PURBA, R. R.; PURBA, I. TALI KASIH PEDULI COVID-19 DOSEN DAN MAHASISWA PROGRAM STUDI MANAJEMEN UNIVERSITAS SARI MUTIARA INDONESIA. Jurnal Abdimas Mutiara, [S. l.], v. 1, n. 2, p. 148–152, 2020. Disponível em: https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/1393. Acesso em: 29 jan. 2026.