Sunthorn Kohtbantau, 1938- Adult education in Thailand a need assessment / [microform] : by Southorn Kohtbantan - Ann Arbor, Mich. : University Microfilms International, 1978 - 1 microfilm reel : positive ; 35 mm. Thesis (Ph. D.) - University of Oregon, 1978 Subjects--Topical Terms: Adult education--Thailand