Rimal, Hem, and Archana Pokharel. “Assessment of Mental Health Problems of School Children Aged 11-17 Years Using Self Report Strength and Difficulty Questionnaire (SDQ)”. Journal of Nepal Paediatric Society 33, no. 3 (December 14, 2013): 172-176. Accessed August 25, 2019. https://www.nepjol.info/index.php/JNPS/article/view/8752.