Ethnic Groups in Mekong River Basin (MRB) Wirapong Chansanam Wirapong Chansanam Khon Kaen University Khon Kaen University digital thesaurus; ethnic groups 2020-09-16 2022-08-04 16:38:12 en-EN ปะโอ (Pa O) แปลว่าชาวดอย 2021-03-15 12:04:382021-05-27 10:19:00