كرة القدم. طول وعرض مرمى كرة القدم

Honduras: The Making of a Banana Republic	Illustrated History Of Football Reed International Books Limited 1996
Taylor, Louise 29 May 2008	Catastrophic Injuries in High School and College Sports

The Sports Process: A Comparative and Developmental Approach.

كرة (كرة القدم): Scottish Journal of Political Economy
كرة (كرة القدم): Sport Matters: Sociological Studies of Sport, Violence and Civilisation
كرة (كرة القدم): "Scottish Journal of Political Economy"

Alexander, Shelley 3 June 2005	The War of the Dispossessed: Honduras and El Salvador 1969
"Procedures to determine the winner of a match or home-and-away"	The number of competing teams has varied over the history of the competition

Austin, Merrill 10 July 2007.

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كرة (كرة القدم): See Hill, Blake and Clark 1998 ; Schuster 1998
كرة القدم: Dart, James; Bandini, Paolo 21 February 2007
كرة قدم: Mueller, Frederick; Cantu, Robert; Van Camp, Steven 1996

Ingle, Sean; Glendenning, Barry 9 October 2003	Toronto: Between the Lines, 1988
	Winner, David 28 March 2005

"Law 3 — The Number of Players".

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كرة (كرة القدم): Summers, Chris 2 September 2004
حرب كرة القدم: Embassy of the United States in London
كرة (كرة القدم): It has been estimated that there were 22 million soccer players in the world in the early 1980s, and that number is increasing