Yiming, Yuan. 1993. Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China. Chiang Mai:Chiang Mai University;
Yiming, Yuan. (1993) Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.
Yiming, Yuan. Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China. Chiang Mai:Chiang Mai University, 1993.
Yiming, Yuan. (1993) Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China (รายงานผลงานวิจัย). Chiang Mai University:Chiang Mai.