Nunan, David. <br/><br/>
Digital electronics 
Salina Muhamad, Muhammad Nazir Mohammed Khalid 
 - 3rd ed. 
 - Great Britain   Heinle & Heinle  c2001, 
 - 1 v. :  ill.  28 cm. 
<br/><br/><label>ISBN: </label>0838422780 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching (Higher)--Foreign speakers.