Yilmaz, A., V.V. Gurses, and M. Gulsen. “The Effect of Combined Preconditioning Strategies on Isokinetic Strength in Well Trained Kickboxers”. Physical education of students 22, no. 5 (September 30, 2018): 278-284. Accessed September 15, 2019. https://sportedu.org.ua/index.php/PES/article/view/682.