Oktafia, Pratista, Prananda Surya Airlangga, Ira Dharmawati, and Retno Asih Setyoningrum. 2021. “Risk Factors Of Complicated Pneumonia In Children”. Journal Of The Indonesian Medical Association 71 (3), 135-40. https://doi.org/10.47830/jinma-vol.71.3-2021-336.