Nasution, Mahmud Ahmad. <br/><br/>
Rahasia perusahaan dan peribadi. 

 - [Tjet. 1] 
 - Medan,  Pustaka Pergaulan  [1955] 
 - 216 p.  22 cm. 
<br/><br/><label>LCCN: </label>sa 68006413  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Success
<br/><br/><label>LC Class. No.: </label>HF5386  / .N34