Jayaweera, Hetti A. M. D., and Champa J. Wijesinghe. 2018. “Maternal Knowledge, Perceptions and Age-Appropriate Coverage of Routine Immunization in Children under Five Years in Southern Sri Lanka”. Asian Journal of Pharmacy, Nursing and Medical Sciences 6 (1). https://ajouronline.com/index.php/AJPNMS/article/view/5187.