Philips, Robert Vincentius, and Indrianti Sudirman. “The Analysis of Patients at the Outpatient Service At Haji General Hospital of Makassar, Indonesia”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 22, no. 1, Apr. 2015, pp. 61-68, https://www.gssrr.org/JournalOfBasicAndApplied/article/view/3848.