N. H. Ubaidullah and H. B. Zaman, “Aspek-aspek Pedagogi dalam Perisian Kursus Multimedia (D-Matematika) bagi Kanak-kanak Disleksia: Pedagogical Aspects in Multimedia Courseware (D-Matematika) for Dyslexic Children”, JSML, vol. 3, no. 2, pp. 42–58, Jan. 2019.