a Abdullahi, Sani Maikano <br/><br/>
\a Effects of Visual Instructional Materials on Students, Performance in Agricultural Science of Senior Secondary Schools in Taraba State, Nigeria  \h [Text] 
\c by Sani Maikano Abdullahi 
 - \a  Zaria  \b  Dept.of Educational Foundation and Curriculum, ABU.  \c 2019 
 - \a x, 151leaves.  \b ill. 
<br/><br/>\a Faculty of Education 
<br/><br/>\a Includes bibliographical references 
<br/><br/><label>LC Class. No.: </label>\a  S 531 Abd  /  \b  504691