المؤلفون: CARPELS, THOMAS, SCOBIE, NAIRN, MACFARLANE, NIALL G., KEMI, OLE J.

المصدر: International Journal of Exercise Science; 2021, Vol. 14 Issue 6, p1192-1203, 12p

مصطلحات موضوعية: SOCCER players, ATHLETIC clubs, YOUTHS' attitudes, RANK correlation (Statistics), DEMOGRAPHIC surveys