Nastiti, E.M. 2020. Relationship of Knowledge Level of First Aid at Layperson of School-Age Children Against Self-Efficacy in Handling Injury Cases: a Systematic Review. Jurnal Kesehatan dr. Soebandi. 8, 2 (Oct. 2020), 148–153. DOI:https://doi.org/10.36858/jkds.v8i2.232.