Afifah A. Pengembangan Lembar Kerja Siswa (LKS) Materi Program Linier Bercirikan Problem Based Learning untuk Membangun Kemampuan Penalaran Matematis . EDU [Internet]. 2017 May 1 [cited 2025 Aug. 26];5(1):1-7. Available from: https://ejurnal.uij.ac.id/index.php/EDU/article/view/552