Dzulkifli Abdul Razak,  Profesor Tan Sri Dato' <br/><br/>
Voicing concern / 
Dzulkifli Abdul Razak 
 - Pulau Pinang :  Penerbit Universiti Sains Malaysia,  2005-2011 
 - 4 v. :  col. ill.  ;  21 cm. 
 - Penerbit USM.  Academic imprint series .
<br/><br/> Education  v.4. 
<br/><br/><label>ISBN: </label>9838612782  RM29.00 (volume 1) 9838612790  RM29.00 (volume 2) 9838612809  RM29.00 (volume 3) 9789838614573  RM86.00 (volume 4) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tobacco--Physiological effect<br/>Drugs--Physiological effect