Hulistiawati H. PENINGKATAN HASIL BELAJAR MATEMATIKA DENGAN MODEL PEMBELAJARAN COOPERATIVE LEARNING PADA MATERI PROGRAM LINEAR. econosains [Internet]. 2016 Aug. 30 [cited 2024 Nov. 24];14(2):42-8. Available from: https://journal.unj.ac.id/unj/index.php/econosains/article/view/689