Kep Poch. 2006. Effects of chemical fertilizers and crop residues on productivity of rice-based cropping systems in Cambodia. Field of Study Agricultural Systems, Chiang Mai University;
Kep Poch. (2006) Effects of chemical fertilizers and crop residues on productivity of rice-based cropping systems in Cambodia . Chiang Mai University/Chiang Mai.
Kep Poch. Effects of chemical fertilizers and crop residues on productivity of rice-based cropping systems in Cambodia. . Chiang Mai:Chiang Mai University, 2006.
Kep Poch. (2006) Effects of chemical fertilizers and crop residues on productivity of rice-based cropping systems in Cambodia . Chiang Mai University/Chiang Mai.