Nguyễn , Thị Nga, and Nữ Nhật Hạnh Phan. 2019. “INTEGRATED MATHEMATICS AND BIOLOGY IN SECONDARY SCHOOLS: A CASE OF PROBABILITY CONCEPT”. Ho Chi Minh City University of Education Journal of Science 16 (12):907. https://doi.org/10.54607/hcmue.js.16.12.2552(2019).