Teaching competency needs of vocational business teachers at the upper secondary school level in Thailand, as perceived by vocational business education instructors [microform] /
by Sukanya Siritantikorn.
- Ann Arbor, Mich. : University Microfilms International, 1979
- 1 microfilm reel : positive ; 35 mm.
Thesis (Ph.D.) - University of Iowa, 1979
Vocational teachers, Training of--Thailand Business teachers--Thailand