Jatiningtyas PD, Kartono, Mindyarto BN. Test Instruments to Measure Non-Routine Mathematics Problem Solving Ability Grade IV Elementary School Students. JERE [Internet]. 8 September 2022 [dikutip 17 Juli 2024];6(3):407-14. Tersedia pada: https://ejournal.undiksha.ac.id/index.php/JERE/article/view/48656