Irumbi, Samuel , <br/><br/>
KLB Visionary Mathematics Grade 6 ;  Learners Book . 
Samuel Irumbi ,Francis Mwangi ,Obadiah Kariuki and others . 
 - 1st edition.  
 - Nairobi  :  Kenya Literature Bureau  .  2022 . 
 - 252 p . ;  col.illustrations .  18 cm . 
<br/><br/><label>ISBN: </label>978-9966-65-741-1 
<br/><br/><label>Dewey Class. No.: </label>510