Yacub, Abubakar. <br/><br/>
Seluk beluk agama  [microform] / 
Abubakar Yacub (Haji) 
 - Medan :  Saiful,  1952 
 - 2 microfiches ;  11 X 15 cm. 
<br/><br/> Bahan IDC (Inter Documentation Company)  Modern Indonesia Project : Monographs