Asaad, Abubakar S. <br/><br/>
Statistics made simple for researchers / 
Abubakar S. Asaad. 
 - Manila :  Rex Book Store,  2008. 
 - ix, 233 p.: 23.3 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-971-23-4994-2 
<br/><br/><label>LC Class. No.: </label>519.5 As11s