Thongyourn, R., Sitsira-at, S., Bhanthumnavin, D. and Vanno, V. 2021. EFFECTES OF RESILIENCE ENHANCEMENT OF MATHAYOM 3 STUDENTS IN OPPORTUNITY EXPANSION SCHOOLS IN PHANG NGA PROVINCE. Srinakharinwirot Research and Development Journal of Humanities and Social Sciences. 13, 26, July-December (Dec. 2021), 120–132.