Zarkasyi. <br/><br/>
Usuluddin ('aqa'id) / 
KH. Imam Zarkasyi. 
 - Gontor, Indonesia :  Trimurti Press,  1952. (repr. 1994) 
 - 92 p. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Islam -- Doctrines.