Bao และผู้แต่งคนอื่นๆ. 1998. Plants as potential indicators of soil contamination by heavy metal in Kup Kap stream valley Mae Taeng district Chiang Mai province. Graduate School, Chiang Mai University;
Bao และผู้แต่งคนอื่นๆ. (1998) Plants as potential indicators of soil contamination by heavy metal in Kup Kap stream valley Mae Taeng district Chiang Mai province . Chiang Mai University/Chiang Mai.
Bao และผู้แต่งคนอื่นๆ. Plants as potential indicators of soil contamination by heavy metal in Kup Kap stream valley Mae Taeng district Chiang Mai province. . Chiang Mai:Chiang Mai University, 1998.
Bao และผู้แต่งคนอื่นๆ. (1998) Plants as potential indicators of soil contamination by heavy metal in Kup Kap stream valley Mae Taeng district Chiang Mai province . Chiang Mai University/Chiang Mai.