Copepoda source request

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Dac, D.H. & P.L. Thai. (1980). Giap xag chan cheo (Copepoda). In: Dang, N.T., T.B. Thai & V.M. Pham. (eds.) Taxonomy of invertebrates in freshwater, North Vietnam. Dinh loai dong vat khong xuong song nuoc ngot bac Viet Nam. Ha Noi, Khoa hoc va ky thuat, Hanoi, Vietnam, 573pp. :260-342.