Suwenda, Letje <br/><br/>
Belajar mudah biologi 
Letje Suwende 
 - Rev. ed. 
 - Bandung  Penerbit Pustaka  1986 
 - 498 p. ; 26 cm. 
<br/><br/><label>ISBN: </label>X920046004 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Study and teaching