Suparp Chatraphorn. 1989. Learning efforts and professional teaching practices of vocational home economics educations. , Ohio State University;
Suparp Chatraphorn. (1989) Learning efforts and professional teaching practices of vocational home economics educations . Ohio State University/Columbus.
Suparp Chatraphorn. Learning efforts and professional teaching practices of vocational home economics educations. . Columbus:Ohio State University, 1989.
Suparp Chatraphorn. (1989) Learning efforts and professional teaching practices of vocational home economics educations . Ohio State University/Columbus.