Veerabenjapol, A., M. Lotrakul, and C. Rattarasarn. “Prevalence and Risk Factors of Depression in Thai Diabetic Patients”. Ramathibodi Medical Journal, vol. 33, no. 1, Mar. 2010, pp. 10-18, https://he02.tci-thaijo.org/index.php/ramajournal/article/view/138031.