Lina Abdulsalam Shihab, Esraa Kamal Jaafar, Aamer Najim Abbas. “Shear Strengthening of Modified Reactive Concrete Beams Using External Prestressing Technique”. Design Engineering, Dec. 2021, pp. 1567- 1580, http://www.thedesignengineering.com/index.php/DE/article/view/7112.