1.
Damanik E, Simanjuntak YT, Wiratma DY. PENCEGAHAN CORONA VIRUS DISEASE 19 (COVID-19) PADA PEDAGANG PASAR HELVETIA KELURAHAN HELVETIA TENGAH. JAM [Internet]. 2020 Sep. 2 [cited 2026 Jan. 29];1(2):8-11. Available from: https://e-journal.sari-mutiara.ac.id/index.php/JAM/article/view/1323