Jittima Pongpojkasem <br/><br/>
The Effectiveness of agricultural incentives in Thailand  a case study of rice, maize, cassava and sugar a theses 
by Jittima Pongpojkasem 
 - Bangkok  Thammasat University  1979 
 - 147 p. ; 27 cm. 
<br/><br/> A thesis 
<br/><br/>p. 142 - p. 147 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural productivity--Thailand