Panthip Monthachitra. (1993) A study of impact modification of polyamide 6 using natural rubber. Mahidol University,:ม.ป.ท.Panthip Monthachitra. 1993. A study of impact modification of polyamide 6 using natural rubber. ม.ป.ท.:Mahidol University,;Panthip Monthachitra. A study of impact modification of polyamide 6 using natural rubber. ม.ป.ท.:Mahidol University, 1993. Print.