Wood, Frank
Pitman Pub., 1992
Buku Teks
Summers, George W.
Wadsworth, 1973
Buku Teks
Peters, Robert A.
New York Amacom c. 1974,
Buku Teks
Harpole, Greg
McGraw-Hill Book , 1986
Buku Teks
edited by Maaike van Berkel, Leon Buskens, Petra M. Sijpesteijn
Brill, 2017
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