Ngoc Giang, Nguyen, Pham Huyen Trang, Nguyen Thi Nga, Ho Loc Thuan, and Mai Vu Linh Dan. “INTEGRATING MATHEMATICS AND ECONOMICS WITH THE SUPPORT OF GEOGEBRA SOFTWARE IN TEACHING THE SYSTEM OF FIRST-ORDER INEQUALITIES WITH TWO UNKNOWNS AT THE HIGH SCHOOL LEVEL”. Journal of Science Educational Science 69, no. 5B (December 27, 2024): 191–200. Accessed April 16, 2025. https://hnuejs.edu.vn/es/article/view/720.