Water polo (English Wikipedia)

"Journal of Physical Education". Physical Directors' Society of the Young Men's Christian Associations of North America. 1958: 139. Retrieved 27 September 2018. {{cite journal}}: Cite journal requires |journal= (help)

businessinsider.com

FINA Water Polo Rules, Section WP 7.3: Advantage Rule Archived 23 October 2013 at the Wayback Machine

"Flippa Fun in the Backyard Pool" (PDF). flippaball.com.au. p. 6. Archived from the original (PDF) on 24 February 2018. Retrieved 16 October 2018.
"Flippa Ball Official Rules Pool" (PDF). flippaball.com.au. p. 6. Archived from the original (PDF) on 24 February 2018. Retrieved 16 October 2018.

Catharine Lo and Dana Edmunds (August–September 2007). "Boards & Spikes". Hana Hou! Vol. 10, No. 4.

Wang, Dr. David A (2 November 2016). "The Most Common Water Polo Injuries -". HSS Playbook Blog. Retrieved 17 November 2020.

Martinez, Vanesa. "The five toughest sports at the Olympics". The Irish Times. Retrieved 27 September 2018.

Snyder, Pete; Reutter, Mary Jo (2011). Water polo for players & teachers of aquatics (PDF). LA84 Foundation. p. 13. Archived from the original (PDF) on 18 January 2014.

"About Flippa Ball – Marist Water Polo Club". maristwaterpolo.org.nz. Retrieved 16 October 2018.

polo. (n.d.). Dictionary.com Unabridged (v 1.1). Retrieved 20 September 2007, from Dictionary.com website

"Water Polo Injuries 101: How to Identify and Heal Them". Physical Therapy, Personal Training, Boot Camp. 11 October 2016. Retrieved 17 November 2020.

FINA Water Polo Rules, Section WP 7.3: Advantage Rule Archived 23 October 2013 at the Wayback Machine
"Flippa Fun in the Backyard Pool" (PDF). flippaball.com.au. p. 6. Archived from the original (PDF) on 24 February 2018. Retrieved 16 October 2018.
"Flippa Ball Official Rules Pool" (PDF). flippaball.com.au. p. 6. Archived from the original (PDF) on 24 February 2018. Retrieved 16 October 2018.
Snyder, Pete; Reutter, Mary Jo (2011). Water polo for players & teachers of aquatics (PDF). LA84 Foundation. p. 13. Archived from the original (PDF) on 18 January 2014.

Henry, William (1911). "Water Polo" . In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 28 (11th ed.). Cambridge University Press. pp. 384–385.