Onuma Sittirak powerful spike and serve. 2007, อรอุมา เสิร์ฟหนักๆ 2007 

Onuma Sittirak is a Thai volleyball player, She is known for powerful spike and serve.
Onuma started playing volleyball as a spiker for Thailand's national team in 2006. In 2009, she helped the Thai team won the Asian Women's Volleyball Championship for the first time and was also awarded the Most Valuable Player of the tournament.