Ardillah Y, Budiastuti A, Safriantini D, Sabana R. Optimization of The Application of The Covid 19 Health Protocol for Elementary School Students in Banyuasin South Sumatera. ABDIMAS [Internet]. 2022 Jan. 3 [cited 2024 Aug. 3];4(2):728-32. Available from: https://journal.umtas.ac.id/index.php/ABDIMAS/article/view/1265