Tohir M, Muhasshanah M, Hidayat R, Valentino E, Wijaya TT. Mathematical Olympiad issues to identify students’ reasoning ability using Polya’s model. Alifmatika J. Pendidik. dan Pembelajaran Mat. [Internet]. 2023Dec.31 [cited 2024Nov.21];5(2):264-81. Available from: https://journal.ibrahimy.ac.id/index.php/Alifmatika/article/view/3691