Vitidpong Pavongsa และ Kritsana Neammanee. (2010) Chi-square approximation of squared sums of independent random variables. Chulalongkorn University:ม.ป.ท.Vitidpong Pavongsa และ Kritsana Neammanee. 2010. Chi-square approximation of squared sums of independent random variables. ม.ป.ท.:Chulalongkorn University;Vitidpong Pavongsa และ Kritsana Neammanee. Chi-square approximation of squared sums of independent random variables. ม.ป.ท.:Chulalongkorn University, 2010. Print.