Kamaruddin, Kamarulzaman, Che Anuar Che Abdullah, and Mohd Noor Idris. 2016. “Parental Stress in Parents of Children With Learning Disabilities: A Limited Demographic Factors”. International Review of Management and Marketing 6 (7S):221-25. https://econjournals.com/index.php/irmm/article/view/3257.