Mari berkoperasi :  himpunan tjerita pendek menjongsong Hari Kopersi ke XIII th. 1960. 

 - Djakarta,  [cover 1961] 
 - 124 p. ;  21 cm. 
<br/><br/> On cover: 3 
<br/><br/><label>LCCN: </label>sa 65001530  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cooperative societies--Indonesia.
<br/><br/><label>LC Class. No.: </label>HD3543.A4  / A53