1. Chen M S, Li C. 2006. Study of producing flocculant by abandoned polystyren foam. Guizhou Chem Ind, 31(2): 12–13 (in Chinese with English abstract)
2. Chen Q Y, Liu Y C. 2006. Study on utilizing waste foamed polystyrene plastics to produce non-drying glue. J Shenyang Norm Univ (Nat Sci), 24(1): 72–76
3. Chen S B, Huang X F, Li C J. 2001. Waste plastic recycling and utilization. Heilongjiang Environ Bull, 25(3): 32–34 (in Chinese)
4. Chen S. 2005. Recovery waste plastics have great potentialities. China Packag Ind, 11: 35–35 (in Chinese)
5. Cheng B D, Song W M. 2006. Resource base evaluation and sustainability of China’s timber industry. Forest Res Manag, 1: 20–24 (in Chinese with English abstract)