Mudayat, M. “EFEK METODE LATIHAN DRILL TERHADAP KETEPATAN SMASH ATLET BULUTANGKIS BERUSIA MUDA DI YOGYAKARTA”. DESANTA (Indonesian of Interdisciplinary Journal), vol. 3, no. 2, Mar. 2023, pp. 313-8, https://jurnal.desantapublisher.com/index.php/desanta/article/view/102.