Ashadi. 1992. Socio economic evaluation of integrated soil-water conservation and cropping systems : case study in Namlang area, Mae Hong Son province. Graduate School, Chiang Mai University;
Ashadi. (1992) Socio economic evaluation of integrated soil-water conservation and cropping systems : case study in Namlang area, Mae Hong Son province . Chiang Mai University/Chiang Mai.
Ashadi. Socio economic evaluation of integrated soil-water conservation and cropping systems : case study in Namlang area, Mae Hong Son province. . Chiang Mai:Chiang Mai University, 1992.
Ashadi. (1992) Socio economic evaluation of integrated soil-water conservation and cropping systems : case study in Namlang area, Mae Hong Son province . Chiang Mai University/Chiang Mai.