PENINGKATAN KEMAMPUAN BERPIKIR KRITIS MATEMATIS MELALUI PENERAPAN MODEL COOPERATIVE LEARNING TIPE GROUP INVESTIGATION (Studi Pada Siswa SMK Dr. Soetomo Surabaya). j.ilm.soulmath [Internet]. 2018 Mar. 30 [cited 2026 Jun. 17];6(1):25-36. Available from: https://ejournal.unitomo.ac.id/index.php/mipa/article/view/925