Natthiyaporn Tabootwong และ Sompong Thongchai. (2010) Readiness of local community at the Mekong Riverside for promoting border tourism to support elderly tourists. Mahidol University:ม.ป.ท.Natthiyaporn Tabootwong และ Sompong Thongchai. 2010. Readiness of local community at the Mekong Riverside for promoting border tourism to support elderly tourists. ม.ป.ท.:Mahidol University;Natthiyaporn Tabootwong และ Sompong Thongchai. Readiness of local community at the Mekong Riverside for promoting border tourism to support elderly tourists. ม.ป.ท.:Mahidol University, 2010. Print.