Haider, Hassan. “THE EFFECT OF COMPOUND EXERCISES USING THE VERTI MAX DEVICE ON DEVELOPING MOTOR SPEED AND DEFENSIVE ACCURACY IN BEACH VOLLEYBALL PLAYERS”. Jurnal Pedagogik Olahraga 11, no. 2 (December 22, 2025): 426–437. Accessed December 24, 2025. https://jurnal.unimed.ac.id/2012/index.php/jpor/article/view/70161.