Ngoc Giang, N. (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), pp. 191–200. doi:10.18173/2354-1075.2024-0147.