Assist. Prof. Dr. Hamida Obaid Abdulamir, Anas Mohammed Abbas. “Efficiency of Professional Behavior and Its Relationship to Spiritual Leadership Among Volleyball Coaches in the Middle Euphrates”. Annals of the Romanian Society for Cell Biology (May 2, 2021): 980–986. Accessed April 24, 2024. https://www.annalsofrscb.ro/index.php/journal/article/view/4450.