T. Purworusmiardi, M. Kamisutara, I. P. Artaya, and A. Sukoco, “Influence of Conditions on Early Warning in Lowering Levels of Infant Mortality and Health Disorders”, J. Appl. Sci. Eng. Technol. Educ., vol. 1, no. 1, pp. 40–45, Jul. 2019.