خويلدي الهواري; شكري سهايلية; DJAMEL SALIM, Mehdine. Studying the levels of psychological pressure and its relationship to nervousness and motivation of the achievement of football players from the first and second professional league clubs – Males –. Journal of Sport Science Technology and Physical Activities, [S. l.], v. 16, n. 2, p. 108–122, 2019. Disponível em: https://revue.univ-mosta.dz/index.php/jsstpa/article/view/836. Acesso em: 27 feb. 2026.