NARESH BHASKAR RAJ, et al. “ISOKINETIC EXERCISE TRAINING ON IMPROVEMENT IN MUSCULAR STRENGTH IN KNEE OSTEOARTHRITIS- A META-ANALYTIC REVIEW”. International Journal of Pharma and Bio Sciences, vol. 7, no. 3, Sept. 2016, pp. 263-74, https://ijpbs.net/index.php/journal/article/view/5223.