Suswanti S, Onyas Widianingsih, Nikita, Julia, Raysa Miranda, Alya Andini, et al. Development Of Qr Code-Based Ushiro Mawashi Geri Kick Exercise Variations For Junior High School Karate Athletes. JPJ [Internet]. 2026 Apr. 19 [cited 2026 Sep. 15];6(3):541-53. Available from: https://jurnal.stokbinaguna.ac.id/index.php/JPJ/article/view/4367