Gicheha, Karanja et al. <br/><br/>
KCSE Score More Mathematics / 
Storymoja Publishers . 
 - Revised ed. 
 - Nairobi :  Storymoja Publishers.   2015 
 - xii, 398 p. ; 
<br/><br/><label>ISBN: </label>9789966066152 
<br/><br/><label>Dewey Class. No.: </label>500.510