Unchalee Suwanmanee และ Thumrongrut Mungcharoen. (2010) Modeling and life cycle environmental assessment of conventional and degradable plastic packages. Kasetsart University,:ม.ป.ท.Unchalee Suwanmanee และ Thumrongrut Mungcharoen. 2010. Modeling and life cycle environmental assessment of conventional and degradable plastic packages. ม.ป.ท.:Kasetsart University,;Unchalee Suwanmanee และ Thumrongrut Mungcharoen. Modeling and life cycle environmental assessment of conventional and degradable plastic packages. ม.ป.ท.:Kasetsart University, 2010. Print.