Ton, That Tu, Vu Khoa Le, Bui Quynh Chi Le, and Thanh Nhan Le. 2026. “EVALUATING THE APPROPRIATENESS OF DATA IN TEACHING STATISTICS AT THE LOWER SECONDARY SCHOOL LEVEL: ILLUSTRATIONS USING TWO GEOGEBRA MODELS”. Ho Chi Minh City University of Education Journal of Science 23 (1):176-88. https://doi.org/10.54607/hcmue.js.23.1.4705(2026).