Katz, Victor J., author
HarperCollins, 1993
Buku Teks
Eves, Howard, author
Holt, Rinehart and Winston, 1964
Buku Teks
Hergenhahn, B.R., 1934-, author
Wadsworth, 2014
Buku Teks
Hergenhahn, B.R., 1934-, author
Wadsworth, 2014
Buku Teks
Hegel, George Wilhelm Friedrich, author
Boss-Merrill, 1953
Buku Teks