Nasution, Elvi Leila Suheila and Angraini, Lilis Marina and Widiati, Indah and Amelia, Sindi (2024) Analysis of the Mathematical Reasoning Ability of Grade 8th Students on Triangular Materials. International Journal of Contemporary Studies in Education (IJ-CSE), 3 (3). pp. 236-244. ISSN 2963-0282