Putra, R. A. N., S. Sanusi, and D. Darmadi. “Analysis of Student Mistooks in Solving the Geometry Transformation Matter for Class IX SMPN 1 Geger Reviewed From The Stage of Polya Theory”. Journal of Education and Learning Mathematics Research (JELMaR), Vol. 3, no. 1, Aug. 2022, pp. 74-83, doi:10.37303/jelmar.v3i1.76.