Admani, Abdulhamid M. et al. <br/><br/>
Password Numerical problems in Chemistry / 

 - Nairobi ;  Moran [E.A.] Publishers Limited  2013. 
 - 168 p. : 
<br/><br/><label>ISBN: </label>9789966346674 
<br/><br/><label>LC Class. No.: </label>540