Madiyono, Bambang, Mulyadi Djer, Sudigdo Sastroasmoro, Amin Subandrio, and Erni Erfan. 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.