Sung, Abraham. <br/><br/>
330 more model letters 
Abraham Sung. 
 - Seremban  Minerva  1996 
 - 310p.  24cm. 
<br/><br/><label>ISBN: </label>9836803033 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial correspondence.<br/>Letters of credit.