Awuor, Benter et al. <br/><br/>
Let's Do Mathematics Learner's Book Grade 4 : 

 - 1st ed. 
 - Nairobi :  Oxford University Press,  2019 
 - ill. col. 165 p.  15 cm. 
<br/><br/><label>ISBN: </label>9780195747843 
<br/><br/><label>Standard Tech. Report. No.: </label>
<br/><br/><label>Dewey Class. No.: </label>500.510