Manley, John F., author
Macmillan, 1976
Buku Teks
by James W. Ceaser ... [and others]
McGraw-Hill , 1984
Buku Teks
Clarke E. Cochran, Lawrence C. Mayer, T.R. Carr, N. Joseph Cayer, Mark J. McKenzie, Laura R. Peck
USA Cengage Learning, 2016
Buku Teks
Hird, John A., author
Wadsworth , 2004
Buku Teks
Isaacs, Asher, 1902-1963, author
Van Nostrand , 1964
Buku Teks