Supin Menayotin. (1989) Ultrastructural and histochemical studies of the nervous system of adult liver fluke, Opisthorchis viverrini. Mahidol University,:ม.ป.ท.Supin Menayotin. 1989. Ultrastructural and histochemical studies of the nervous system of adult liver fluke, Opisthorchis viverrini. ม.ป.ท.:Mahidol University,;Supin Menayotin. Ultrastructural and histochemical studies of the nervous system of adult liver fluke, Opisthorchis viverrini. ม.ป.ท.:Mahidol University, 1989. Print.