edited by Violet B. Haas, Carolyn C. Perrucci
The University of Michigan Press, 1984
Buku Teks
Cexhead, Elizabeth
Longmans Green, 1961
Buku Teks
Carr-Saunders, A. M., author
Clarendon Press, 1933
Buku Teks
Bennet, William Ralph, author
Prentice-Hall, 1976
Buku Teks
Michielsen, Bastiaan, editor
[Springer-Verlag, ], 2012
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