“Technology Utilization in Tennis Coaching Clinics to Improve Beginners’ Basic Tennis Skills”. COMPETITOR: Jurnal Pendidikan Kepelatihan Olahraga 18, no. 1 (February 1, 2026): 0039–0050. Accessed February 1, 2026. https://competitor.idjournal.eu/index.php/competitor/article/view/491.