Hulu AC, Liliana Puspa Sari, Sembiring I. Efforts to Improve Learning Outcomes of Badminton Forehand Lob Game Using Problem Base Larning Method. JUMPER [Internet]. 2020Oct.8 [cited 2026May9];1(1):1-. Available from: https://jurnal.stokbinaguna.ac.id/index.php/JUMPER/article/view/120