Marukyan, . V. S. (2015) “FORMATION OF THE ABILITY OF DETERMINING TIME PERIOD IN DIFFERENT TYPES OF ACTIVITIES FOR CHILDREN WITH MENTAL RETARDATION”, Armenian Journal of Special Education, 2(1), pp. 236-240. Available at: https://archiv.specedjournal.aspu.am/index.php/se/article/view/124 (Accessed: 27March2025).