Önder, İsmail, Masal, E., DEMİRHAN, E., Horzum, M. B., & BEŞOLUK, Şenol. (2016). Psychometric properties of sleep quality scale and sleep variables questionnaire in Turkish student sample. International Journal of Psychology and Educational Studies, 3(3), 9–21. https://doi.org/10.17220/ijpes.2016.03.002