Roengsak Katawatin <br/><br/>
Agricultural land evaluation in Northeast Thailand using crop modeling and remote sensing , in a geographic information system  [microform] / 
Roengsak Katawatin 
 - Ann Arbor, Mich. :  University Microfilms International,  1995 
 - 5 microfisches ;  11x 15 cm. 
<br/><br/>Thesis (Ph.D) - University of Alberta , 1995