Al-Absi, Mohammad Esmail, <br/><br/>
The socio-physical environmental evaluation of Qat and the perception / 
Mohammad Esmail al-Absi. 
 - 318 pages :  illustrations ;  30 cm. 
<br/><br/>Tesis (Doktor Falsafah) - Universiti Kebangsaan Malaysia, 2010. 
<br/><br/>References :  page [239]-264. 
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Universiti Kebangsaan Malaysia--Dissertations.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dissertations, Academic--Malaysia.<br/>Khat--Social aspects--Yemen (Republic)