Yip, Po-Ching
Routledge, 2009
Buku Teks
Oosterhoff, Jenneke A.
Routledge, 2009
Buku Teks
Byon, Andrew Sangpil
Routledge, Taylor & Francis Group, 2009
Buku Teks
edited for the International Epidemiological Association and the World Health Organization by Basil S. Hetzel
Oxford University Press, 1978
Buku Teks
Chrysler Learning Inc., 1983
Buku Teks