Rudi Purwanto, Arini Hariyati. The Effect of Procedural Scaffolding in Problem Based Learning on Student Problem-solving Ability in Momentum and Impulse Material. Edu. Spec. [Internet]. 2023 Apr. 16 [cited 2026 Mar. 26];1(1):29-32. Available from: https://jurnal.tintaemas.id/index.php/ES/article/view/6