Patcharin Pinthong. (2009) Synthesis and characterization of polyamide-4 /. Kasetsart University,:ม.ป.ท.Patcharin Pinthong. 2009. Synthesis and characterization of polyamide-4 /. ม.ป.ท.:Kasetsart University,;Patcharin Pinthong. Synthesis and characterization of polyamide-4 /. ม.ป.ท.:Kasetsart University, 2009. Print.