N. Setyawan, “The Effectiveness of the Drill Method in Improving Club Phinisi Tennis Forehand Ability in Court Tennis Games: Efektivitas Metode Drill terhadap Peningkatan Kemampuan Forehand Club Phinisi Tenis dalam Permainan Tenis Lapangan”, JIS, vol. 25, no. 2, pp. 211-216, Jun. 2025.