Tatpon Siripraparat และ Kritsana Neammanee. (2016) Half-normal approximation for Number of returns to origin of random walks. Chulalongkorn University:ม.ป.ท.Tatpon Siripraparat และ Kritsana Neammanee. 2016. Half-normal approximation for Number of returns to origin of random walks. ม.ป.ท.:Chulalongkorn University;Tatpon Siripraparat และ Kritsana Neammanee. Half-normal approximation for Number of returns to origin of random walks. ม.ป.ท.:Chulalongkorn University, 2016. Print.