Sirisuda Thongchalerm. (2008) A comparison of classifier usage among three generations in Thai dialect of Ubon Ratchathani. Mahidol University,:ม.ป.ท.Sirisuda Thongchalerm. 2008. A comparison of classifier usage among three generations in Thai dialect of Ubon Ratchathani. ม.ป.ท.:Mahidol University,;Sirisuda Thongchalerm. A comparison of classifier usage among three generations in Thai dialect of Ubon Ratchathani. ม.ป.ท.:Mahidol University, 2008. Print.