Sagala, Porkas <br/><br/>
Mengelola lahan kehutanan Indonesia / 
Porkas Sagala 
 - Jakarta :  Yayasan Obor Indonesia,  1994 
 - 534 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>9794611786  RM57.60 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forest management--Indonesia