Wulandari, A.T. et al. 2020. Apps “SIPITUNG”: Flipped-classroom training in basic cardiopulmonary life support. MEDISAINS: Jurnal Ilmiah Ilmu-Ilmu Kesehatan. 18, 2 (Aug. 2020), 63–68. DOI:https://doi.org/10.30595/medisains.v18i2.7650.