Harumdini, M., Supriyatno, B. and Sekartini, R. (2012) “Efficacy of salbutamol-ipratropium bromide nebulization compared to salbutamol alone in children with mild to moderate asthma attacks”, Paediatrica Indonesiana, 52(4), pp. 200-8. doi: 10.14238/pi52.4.2012.200-8.