AUTHOR=Alfuraih Riyadh Khalid , Almalki Nabil Sharaf , AlNemary Faisal Mohammed TITLE=Effectiveness of picture exchange communication system in developing requesting skills for children with multiple disabilities JOURNAL=Frontiers in Psychology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/psychology/articles/10.3389/fpsyg.2024.1434478 DOI=10.3389/fpsyg.2024.1434478 ISSN=1664-1078