Leckie, Rozaini, Smita Shah, Bin Jalaludin, and Auburn Immunisation Task Force. “School Entry Immunisation Certificates: A Useful Tool for Immunisation Surveillance?”. Communicable Diseases Intelligence 20 (January 8, 1996): 5–8. Accessed April 13, 2026. https://ojs.cdi.cdc.gov.au/index.php/cdi/article/view/160.