Safikhani H, Fadilah Bt Tengku Kamalden T, Amri SB, Ahmad M.M.H M. The effect of different systems of carrying backpacks on muscle activity. J. Hum. Sport Exerc. [Internet]. 2021 Sep. 27 [cited 2024 Apr. 19];10(2proc):S692-S698. Available from: https://www.jhse.ua.es/article/view/2015-v10-n2-proc-the-effect-of-different-systems-of-carrying-bac