A simplified guide for conducting pre-testing and evaluation of educational material by field-workers.
- Bangkok : United Nations (UN) , 1974
- 25p. : ill. ; 27 cm.
- Asian population studies series, no. 27 (INSERT) .
Includes bibliographical references.
Teaching --Aids and devices--Evaluation --Congresses
UN ESCAP APSS-27
Includes bibliographical references.
Teaching --Aids and devices--Evaluation --Congresses
UN ESCAP APSS-27