Thi Anh Phuong, B. et al. 2024. THE STATUS OF DEVELOPING COMMUNICATION SKILLS FOR 4-5 YEARS OLD CHILDREN WITH AUTISM THROUGH THE PICTURE EXCHANGE COMMUNICATION SYSTEM - PECS. Journal of Science Educational Science. 69, 5A (Dec. 2024), 355–364. DOI:https://doi.org/10.18173/2354-1075.2024-0110.