Ethar Hamdi Abdul-Rahman. The Effect of Special Exercises Based on Heart Rate Indicators on Developing Some Functional Indicators and Explosive Strength in Volleyball Players. ms [Internet]. 2024 Dec. 30 [cited 2025 Mar. 29];23(4):63-70. Available from: https://jcopew.uobaghdad.edu.iq/index.php/sport/article/view/1389