Pimpak, Taksin, Chutima Yoobua, and Pawena Limpiteeprakan. 2018. “Sleep Quality Among Students at a High School in Sisaket Province, Thailand”. Journal of Public Health and Development 16 (1). Bangkok, Thailand:63-74. https://he01.tci-thaijo.org/index.php/AIHD-MU/article/view/119047.