Mulyadi, M., B.-O. Lee, R. T. Malara, and H. J. Bidjuni. “The Effectiveness of Blended Learning in Basic Life Support Training Among Nursing Students: A Systematic Review”. KnE Life Sciences, Vol. 6, no. 1, Mar. 2021, pp. 402-14, doi:10.18502/kls.v6i1.8630.