©2013 National Research Council of Thailand
Yuan และผู้แต่งคนอื่นๆ. 1993. Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China. Graduate school, Chiang Mai University;
Yuan และผู้แต่งคนอื่นๆ. (1993) Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China . Chiang Mai University/Chiang Mai.
Yuan และผู้แต่งคนอื่นๆ. Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China. . Chiang Mai:Chiang Mai University, 1993.
Yuan และผู้แต่งคนอื่นๆ. (1993) Impacts of institutional reform, input use, and technological change on crop production in Guizhou province, China . Chiang Mai University/Chiang Mai.