Mulyono. 1998. Assessment of soil erosion following land use changes in Kup Kap stream valley Mae Taeng district Chiang Mai province. Graduate School, Chiang Mai University;
Mulyono. (1998) Assessment of soil erosion following land use changes in Kup Kap stream valley Mae Taeng district Chiang Mai province . Chiang Mai University/Chiang Mai.
Mulyono. Assessment of soil erosion following land use changes in Kup Kap stream valley Mae Taeng district Chiang Mai province. . Chiang Mai:Chiang Mai University, 1998.
Mulyono. (1998) Assessment of soil erosion following land use changes in Kup Kap stream valley Mae Taeng district Chiang Mai province . Chiang Mai University/Chiang Mai.