Departemen Pendidikan dan Kebudayaan  <br/><br/>
Lomba Penelitian Ilmiah Remaja 1986 

 - 4 
 - 138 hlm.  ilus.  21 cm 
<br/><br/><label>ISBN: </label>979-407-192-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>0
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Grade 7-9
<br/><br/><label>Dewey Class. No.: </label>500.