Okoth, B K <br/><br/>
KLB Top Mark Series :  KCSE Revision Physics/ 
B . K . Okoth 
 - Fourth ed.  2012 
 - Nairobi :  Kenya literatute bureau,  1990. 
 - 336 P. : 
<br/><br/><label>ISBN: </label>9789966656001 
<br/><br/><label>Dewey Class. No.: </label>373.530