Grine، R.، Saidi، M.، و Damas، B. (2020). The Relationship between Self-Confidence and High-Level Performance: Field Study of the Male National Wrestling Team "15-18 Years" African Games July 2018, Algeria. مجلة العلوم الانسانية، س20, ع1 ، 863 - 871. مسترجع من http://search.mandumah.com/Record/1097482
Grine، Rachida، Mustapha Saidi، و Bachera Damas. "The Relationship between Self-Confidence and High-Level Performance: Field Study of the Male National Wrestling Team "15-18 Years" African Games July 2018, Algeria." مجلة العلوم الانسانية س20, ع1 (2020): 863 - 871. مسترجع من http://search.mandumah.com/Record/1097482