“ISOLATED AND COMBINED EFFECTS OF SWISS BALL AND KETTLEBELL TRAINING INDUCED ADAPTATIONS ON BACK STRENGTH OF ADOLESCENT BOYS”. International Journal of Food and Nutritional Sciences, vol. 11, no. 11A ( Special Issue on Multidisciplinary, Jan. 2022, pp. 226-33, https://ijfans.org/index.php/Journal/article/view/9487.