Wisitpongaree, C., V. Kolkijkovin, and P. Techakasem. “Depression in Primary School Student in Dusit District, Bangkok”. Vajira Medical Journal : Journal of Urban Medicine, vol. 58, no. 3, Dec. 2014, p. 43, https://he02.tci-thaijo.org/index.php/VMED/article/view/25041.