Obuong ,S.I.O ; <br/><br/>
KCSE Masterpiece  Revision Biology ;  Photography Manual ,2nd edition.  
Masterpiece Educational Publishers.  
 - 2nd edition. 
 - Nairobi :  Masterpiece Educational Publishers.   2011 
 - vi ,232 p . ;  col. illustrations.   17cm . 
<br/><br/><label>ISBN: </label>9966-06-007-3 
<br/><br/><label>Dewey Class. No.: </label>570