Pimupsorn Boriboonrat และ Srisombat Chokprajakchat. (2012) The development of border crossing management in Thailand. Mahidol University:ม.ป.ท.Pimupsorn Boriboonrat และ Srisombat Chokprajakchat. 2012. The development of border crossing management in Thailand. ม.ป.ท.:Mahidol University;Pimupsorn Boriboonrat และ Srisombat Chokprajakchat. The development of border crossing management in Thailand. ม.ป.ท.:Mahidol University, 2012. Print.