Kumpulan naskah˛. 

 - Medan,  Balai Penelitian Perkebunan,  1968. 
 - 1 v.  (various pagings)  33 cm. 
<br/><br/> Cover title. 
<br/><br/>Bibliography: p. 17-18 (6th group) 
<br/><br/><label>LCCN: </label>sa 68019478  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice--Indonesia--Congresses.
<br/><br/><label>LC Class. No.: </label>SB191.R5  / S95 1967