PENGEMBANGAN LEMBAR KERJA SISWA (LKS) BERBASIS MODEL PROBLEM BASED LEARNING (PBL) BERMUATAN HOTS PADA MATERI BILANGAN BULAT SISWA KELAS VII MTs. (2021). Jurnal Prodi Pendidikan Matematika (JPPM), 3(1), 211-223. https://jurnal.mipatek.upgripnk.ac.id/index.php/JPPM/article/view/161