Apinya Waiwathana และ Suree Kongsomchit. (2009) Factors affecting foreigners' decisions in joining the meditation course at the Middle Way meditation retreat. Language Institute, Thammasat University,:ม.ป.ท.Apinya Waiwathana และ Suree Kongsomchit. 2009. Factors affecting foreigners' decisions in joining the meditation course at the Middle Way meditation retreat. ม.ป.ท.:Language Institute, Thammasat University,;Apinya Waiwathana และ Suree Kongsomchit. Factors affecting foreigners' decisions in joining the meditation course at the Middle Way meditation retreat. ม.ป.ท.:Language Institute, Thammasat University, 2009. Print.