W. S. Al-Mamari, M. M. Emam, A. M. Al-Futaisi, and A. M. Kazem, “Comorbidity of Learning Disorders and Attention Deficit Hyperactivity Disorder in a Sample of Omani Schoolchildren”, Sultan Qaboos Univ Med J, vol. 15, no. 4, pp. 528–533, Nov. 2015.