Piyawat Diloksumpun และ Wanchai Arunpraparut. (2008) Decision support system for eucalypt plantation investment in Chachoensao province. Kasetsart University,:ม.ป.ท.Piyawat Diloksumpun และ Wanchai Arunpraparut. 2008. Decision support system for eucalypt plantation investment in Chachoensao province. ม.ป.ท.:Kasetsart University,;Piyawat Diloksumpun และ Wanchai Arunpraparut. Decision support system for eucalypt plantation investment in Chachoensao province. ม.ป.ท.:Kasetsart University, 2008. Print.