Long, Vu Ngoc, A Niramitsantipong, C Jiraphongsa, B Attawong, W Khuankaw, S Tipsriraj, and S Pattamadilok. “Investigation on Measles Outbreak among University Students in Phrae Province, Thailand, 2008: Risk Factors and Seroprevalence of Antibodies to Measles”. Outbreak, Surveillance, Investigation & Response (OSIR) Journal 4, no. 1 (April 21, 2011): 6–12. accessed October 4, 2026. https://he02.tci-thaijo.org/index.php/OSIR/article/view/263357.