Lutfiani S, Liliawati W, Samsudin A, Aviyanti L. Analysis of The Thermodynamics Problem-solving Process Based on Polya’s Stages in High School Students. JPMS [Internet]. 2026 Jan. 2 [cited 2026 Feb. 9];14(1):1-10. Available from: https://jurnal.uny.ac.id/index.php/jpms/article/view/90339