Omar b. Ahmad @ Hamat,  <br/><br/>
Koleksi 55 petua mengira pantas 

 - 143 pages ;   22 cm 
<br/><br/><label>ISBN: </label>9839215140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510