Nunthasen, Ke, and Waraporn Nunthasen. 2019. “The Willingness to Accept Compensations for Reduction of Chemical Usage in Rice Production: A Choice Experiment Study”. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences 37 (3):79-89. https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/177454.