Pratiwi, RD. Devy Citra. “The Effectiveness of Strokes Exercises With Shadow and Audio Visual on Badminton Dropshot Accuracy”. Jurnal Sains Keolahragaan dan Kesehatan 7, no. 2 (March 6, 2023): 114 - 129. Accessed October 8, 2025. https://journals.itb.ac.id/index.php/jskk/article/view/19919.