Sularyo, T., B. Endyarni, T. H, T. Tamin, and G. Gitayanti. “Role of Denver II and Development Quotients in the Management of Several Pediatric Developmental and Behavioral Disorders”. Paediatrica Indonesiana, Vol. 52, no. 1, Mar. 2012, pp. 51-56, doi:10.14238/pi52.1.2012.51-56.