DLH, D., A. Usman, M. Nataprawira, and A. Primadi. “The Prevalence of Hyaline Membrane Disease and the Value of Shake Test and Lamellar Body Concentration in Preterm Infants”. Paediatrica Indonesiana, Vol. 43, no. 3, Oct. 2016, pp. 77-81, doi:10.14238/pi43.3.2003.77-81.