Muhammad Rafid Mahdi. The effect of parallel exercises of play employing a device designed to improve the accuracy and strength of the serving skill and forehand & backhand groundstrokes in tennis. Czech. Jou. Mult.Inno. [Internet]. 2023 Mar. 24 [cited 2025 Jan. 11];15:15-27. Available from: https://peerianjournal.com/index.php/czjmi/article/view/511