Wijaya, Ardhi Surya, Indra Kasih, and Budi Valianto. “THE EFFORTS TO IMPROVE STUDENT™S BLOCKING LEARNING OUTCOMES IN VOLLEYBALL GAMES BY APPLICATION OF LEARNING VARIATION”. Indonesia Sport Journal 4, no. 1 (April 16, 2021): 26–30. Accessed June 8, 2025. https://jurnal.unimed.ac.id/2012/index.php/isj/article/view/37851.