Kartininingsih, Lusiana, Landia Setiawati, and Makmuri S. 2016. “Comparison of Clinical Efficacy and Safety Between Salbutamol-Ipratropium Bromide Nebulization and Salbutamol Alone in Children With Asthmatic Attack”. Paediatrica Indonesiana 46 (6), 241-5. https://doi.org/10.14238/pi46.6.2006.241-5.