1.
Qudwatullathifah RN, Suyitno H, Ridlo S. Students’ Problem Solving Ability Based on the Fraction Concept Mastery in the PBL Model. JPE [Internet]. 2Oct.2019 [cited 27Sep.2024];8(8):207-14. Available from: https://journal.unnes.ac.id/sju/jpe/article/view/34451