Kurnia I, Lestari T. The Effect Of Project Based Learning Model Based STEM On The Knowledge Competence Of Class VII Students Of SMPN 8 Payakumbuh. universe [Internet]. 30Jul.2025 [cited 30Aug.2025];6(1):53-2. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/588