Handayani, N. “Study on Antibiotic Usage on Typhoid Fever Diseases In The Pediatric Ward of RSUD Dr. Soekardjo Tasikmalaya 2015”. Jurnal Persada Husada Indonesia, Vol. 4, no. 12, July 2017, pp. 51-56, doi:10.56014/jphi.v4i12.206.