Journal of oil palm research  Vol. 31(4), December 2019 

 - Boston  Thomson Heinle  c2005. 
 - 4 v.  col. ill.  28 cm. 
<br/><br/><label>ISBN: </label>0838406629 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers.