Maqbulatullah B, Hidayatullah MF, Purnama SK. Experimental Study of Demonstration Exercise Models on the Performance of Tennis Field Service Biomechanics: Studi Eksperimen Model Latihan Demonstration Terhadap Performa Biomekanika Service Tenis Lapangan . pssh [Internet]. 2022Jun.1 [cited 2024Apr.20];3:250-5. Available from: https://pssh.umsida.ac.id/index.php/pssh/article/view/168