The Kenya National Examination Council :  Four Figure Mathematical Tables / 
Printed by Kenya Literature Bureau. 
 - 7th ed.  2021. 
 - Nairobi :  The Kenya  National Examinations Council,  1991. 
 - 38 p. : 
<br/><br/><label>ISBN: </label>9789966657046 
<br/><br/><label>Dewey Class. No.: </label>500.510