Siregar, S., I. Mardiati, and A. Akib. “Clinical Features and Specific LgE in Babies and Children With Cow’s Milk Allergy”. Paediatrica Indonesiana, Vol. 39, no. 3-4, Apr. 1999, pp. 83-7, doi:10.14238/pi39.3-4.1999.83-7.