“Treatment Failure of Ampicillin to Children With Pneumonia at Dr. Hasan Sadikin General Hospital Bandung from 2014–2015”. Althea Medical Journal 4, no. 1 (March 31, 2017): 100–106. Accessed August 3, 2026. https://journal.fk.unpad.ac.id/index.php/amj/article/view/1029.