Ardillah, Yustini, et al. “Optimization of The Application of The Covid 19 Health Protocol for Elementary School Students in Banyuasin South Sumatera”. ABDIMAS: Jurnal Pengabdian Masyarakat, vol. 4, no. 2, Jan. 2022, pp. 728-32, doi:10.35568/abdimas.v4i2.1265.