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Ngoc Giang, N. et al. 2024. 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, 5B (Dec. 2024), 191–200
. DOI:https://doi.org/10.18173/2354-1075.2024-0147.