Damanik A, Ratu N. Analysis stage of problem solving in completing the math olympiad geometry content in junior high school 2 Salatiga. Math Didactic [Internet]. 14 September 2021 [dikutip 5 Juli 2025];7(2):186-94. Tersedia pada: https://jurnal.stkipbjm.ac.id/index.php/math/article/view/811