Khofifah, K., Rosyadi, R., Gunadi, F., Nandang, N. and Runisah, R. 2024. Students’ Difficulties In Solve Trigonometry Problem Solving According To Step Polya’s. Mathline : Jurnal Matematika dan Pendidikan Matematika. 9, 3 (Aug. 2024), 919–946. DOI:https://doi.org/10.31943/mathline.v9i3.571.