Pinthipya Nomsawai. (1986) A comparative study on drug resistance of Escherichia coli isolated from chicken drops and human feces. Mahidol University,:ม.ป.ท.Pinthipya Nomsawai. 1986. A comparative study on drug resistance of Escherichia coli isolated from chicken drops and human feces. ม.ป.ท.:Mahidol University,;Pinthipya Nomsawai. A comparative study on drug resistance of Escherichia coli isolated from chicken drops and human feces. ม.ป.ท.:Mahidol University, 1986. Print.