'Ubaydat, Dhawqan, <br/><br/>
al-Bahth al-'ilmi :  mafhumuhu - adawatuhu - asalibuh / 
ta'lif Dhawqan'Ubaydat, 'Abd al-Rahman'Adas, Kayid'Abd al-Haqq. 
 - 'Amman :  Dar al-Fikr,  1989. 
 - 319 pages ;  25 cm. 
<br/><br/><label>ISBN: </label> Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research.<br/>Research--Methodology.