ESTELLE L. POPHAM ADELE FRISBIE SCHRAG text TORONTO : GREGG DIVISION, 1971. eng A teaching- learning system for business education, designed for teacher-traices, teacher educators, and in-service teacher, differs from the traditional methods book in two ways: first, imlement the concept of competency-based education. second, it concentrates on student achieve-ment and the effectiveness of the teaching - learning system for each student BUSINESS EDUCATION URN:ISBN:0-07-050504-7