1.
Agizew KT, Ushachew EG, Hurisa SS, Gizaw DT. Constraints of Students’ Mathematical Problem Solving and Proving Skill Competences, the Case of Four preparatory Schools in Guraghe Zone. IJSBAR [Internet]. 2018 Aug. 1 [cited 2024 May 6];40(2):18-29. Available from: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8956