Kittipong Kongsomboon และ Chairat Neruntarat. (2009) Stress and depressive symptoms related excessive daytime sleepiness in Thai medical students, Srinakharinwirot University. <i>Journal of Medicine and Health Sciences</i>, <i>17</i>(2), 59-69.Kittipong Kongsomboon และ Chairat Neruntarat. "Stress and depressive symptoms related excessive daytime sleepiness in Thai medical students, Srinakharinwirot University". Journal of Medicine and Health Sciences 17 (2009):59-69.Kittipong Kongsomboon และ Chairat Neruntarat. Stress and depressive symptoms related excessive daytime sleepiness in Thai medical students, Srinakharinwirot University. Faculty of Medicine,Srinakharinwirot University:ม.ป.ท. 2009.