Elements of Mathematical Economics / 
M.S Mukras . 
 - 2nd ed. 
 - Nairobi , Kenya .  KLB,  2010. 
 - 437 p,; 
<br/><br/><label>ISBN: </label>9789966447647 
<br/><br/><label>LC Class. No.: </label>HB135  / .M82 2010