سيد الحداد محمد حسن الورداني. "Effects of Using Qualitative Exercises on Some Tactical Patterns and Complex Technical Performances as Phases for Building Up Attack for Both Places of Back Defenders in Soccer". مجلة بحوث التربية البدنية وعلوم الرياضة, 4, 1, 2024, 1-14. doi: 10.21608/osdj.2024.260948.1098