Taweesin Visanuyothin และ Patcharin Arunruang. (2012) lntelligence Quotient survey of Thai children in two decades. <i>Journal of Mental Health of Thailand</i>, <i>20</i>(2), 67-78.Taweesin Visanuyothin และ Patcharin Arunruang. "lntelligence Quotient survey of Thai children in two decades". Journal of Mental Health of Thailand 20 (2012):67-78.Taweesin Visanuyothin และ Patcharin Arunruang. lntelligence Quotient survey of Thai children in two decades. Department of Mental Health Thailand:ม.ป.ท. 2012.