วลัยเสถียร จ. (2009) “Mental Health Status and Related Factors among Grade 8 Secondary School Students in Public Health Region 14 in 2008”, Disease Control Journal. Nonthaburi, TH, 35(1), pp. 72–78. Available at: https://he01.tci-thaijo.org/index.php/DCJ/article/view/155910 (Accessed: 1 May 2024).