N. ul A. Munawar and B. O. Wattoo, “Effectiveness of a picture exchange communication system (PECS) on dental plaque and oral health of children with autism”, PJBMR, vol. 2, no. 3, Oct. 2024, Accessed: Oct. 16, 2024. [Online]. Available: https://www.pjbmr.com/index.php/pjbmr/article/view/82