Wasson K, McLaughlin TF, Derby KM, Clark A. THE EFFECTS OF USING FUNCTIONAL COMMUNICATION TRAINING AND VERBAL IMITATION TO TEACH TWO PRESCHOOL STUDENTS WITH DEVELOPMENTAL DELAYS THE WORD “HELP”. IJEE [Internet]. 2013 Apr. 8 [cited 2026 Nov. 12];2(2):570-8. Available from: https://ijee.org/ijee/article/view/1330