Primashanti, Dewa Ayu, Putu Purniti, and I Gusti Windiani. 2018. “Forced Expiratory Volume in 1-Second and Blood Gas Analysis in Children During Asthma Attacks”. Paediatrica Indonesiana 58 (5), 221-6. https://doi.org/10.14238/pi58.5.2018.221-6.