Lucken, Karol M.
Routledge, Taylor & Francis Group, 2017
Buku Teks
edited by Lewis Perry and Michael Fellman
Louisiana State University Press , 1979
Buku Teks
Bearden, William O.
McGraw-Hill/Irwin, 2004
Buku Teks
Boyce, Peter John
University of Queensland Press, 1977
Buku Teks
Statsky, William P., 1943-
West Publishing, 1974
Buku Teks