Nuttanee Bhuwatanavong และ Parames Chutima. (2009) Sales allocation method improvement: a case study in automobile manufacturing company. Chulalongkorn University:ม.ป.ท.Nuttanee Bhuwatanavong และ Parames Chutima. 2009. Sales allocation method improvement: a case study in automobile manufacturing company. ม.ป.ท.:Chulalongkorn University;Nuttanee Bhuwatanavong และ Parames Chutima. Sales allocation method improvement: a case study in automobile manufacturing company. ม.ป.ท.:Chulalongkorn University, 2009. Print.