Effects of Geometrical Set and Geogebra Application on Achievement in Geometry among Upper Basic Students in Owerri Education Zone, Imo State, Nigeria. foefujs [Internet]. 2025 Oct. 1 [cited 2026 Mar. 2];2(2):166-74. Available from: https://js.foefugusau.com.ng/index.php/foefujs/article/view/143