Samanta, A., and S. Mukherjee. “Assessment of Myoelectric Manifestations of Muscle Fatigue During Repetitive Isometric Voluntary Contraction in Boys Aged 12-14”. Physical Education Theory and Methodology, vol. 21, no. 1, Mar. 2021, pp. 50-60, doi:10.17309/tmfv.2021.1.07.