et. al., Al-Qudah,. (2021) 2021. “Impact Of Combined Lumbar Traction With Cervical Traction in Chronic Lumbar Disc Herniation”. Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12 (6):1124-31. https://www.turcomat.org/index.php/turkbilmat/article/view/2430.