FLAYIH , Mustafa; MAHDI , Hamid. The effect of preventive exercises using the (isometric) method and aids to help develop the strength of the thigh muscles of the first-class referees of the Iraqi Premier League. Journal of Physical Education, Baghdasd, Iraq., v. 35, n. 4, p. 1361–1343, 2023. DOI: 10.37359/JOPE.V35(4)2023.1944. Disponível em: https://www.jcope.uobaghdad.edu.iq/index.php/jcope/article/view/1944. Acesso em: 13 2025.