Madiyono, B., Djer, M., Sastroasmoro, S., Subandrio, A., & Erfan, E. (2016). Inhibiting ability of benzathine penicillin G towards group A Streptococcus β -hemolyticus in 21 and 28 days after a single intramuscular injection. Paediatrica Indonesiana, 43(4), 136-9. https://doi.org/10.14238/pi43.4.2003.136-9