Priatna N, Avip B, Mulyati Mustika Sari R. Efektifitas Project Based Learning-STEM dan Pemecahan Masalah Matematis Siswa pada Materi Trigonometri. supremum j of mathematics education [Internet]. 2022 Jul. 25 [cited 2026 Jan. 22];6(2):151-6. Available from: https://journal-fkip.unsika.ac.id/index.php/supremum/article/view/6588