Paitoon Seanbualuang และ Rath Pichyangkura. (2007) Effects of chitosan on growth and production of rice Oryza sativa L. cv. Pathum Thani 1. Chulalongkorn University:ม.ป.ท.Paitoon Seanbualuang และ Rath Pichyangkura. 2007. Effects of chitosan on growth and production of rice Oryza sativa L. cv. Pathum Thani 1. ม.ป.ท.:Chulalongkorn University;Paitoon Seanbualuang และ Rath Pichyangkura. Effects of chitosan on growth and production of rice Oryza sativa L. cv. Pathum Thani 1. ม.ป.ท.:Chulalongkorn University, 2007. Print.