Siti, J. and Wongpinpech, V. 2023. Factors Influencing Self-Advocacy Behaviour of Children and Youths in Mueang District, Chiang Mai Province. PAYAP UNIVERSITY JOURNAL. 33, 2 (Dec. 2023), 33–46. DOI:https://doi.org/10.14456/pyuj.2023.18.