Improving Squat Style Long Jump Techniques Through A Progressive Drill Training Model: A Classroom Action Research. Compet. J. Pendidik. Kepelatihan Olahraga [Internet]. 2026 May 10 [cited 2026 May 25];18(2):2796-810. Available from: https://competitor.idjournal.eu/index.php/competitor/article/view/913