Le Hoai Thong, N. and Anh Tuong, H. (2024) “USING GEOGEBRA IN TEACHING CONES TO DEVELOP THE COMPETENCY USING MATHEMATICAL AIDS AND TOOLS FOR GRADE 9 STUDENTS”, Journal of Science Educational Science, 69(5B), pp. 60–71. doi:10.18173/2354-1075.2024-0135.