Nababan, Donal, Mido Ester Sitorus, and Jasmen Manurung. 2021. “BUDAYAKAN PROTOKOL KESEHATAN DEMI INDONESIA BEBAS COVID-19 DESA RAMBUNG KECAMATAN SIBOLANGIT KABUPATEN DELI SERDANG”. Jurnal Abdimas Mutiara 2 (2):25-34. https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/2015.