Jesse, Kenneth E., author
Harcourt Brace Jovanovich, 1987
Buku Teks
Carnap, Rudolf, author
Harvard University Press, 1946
Buku Teks
Loing, A.J.L., author
Ichtiar, 1978
Buku Teks
Timings, R.L. (Roger Leslie), 1927-, author
Longman, 1991
Buku Teks
H.K Rihan Int'l Culture Spread Limited, 2008
Buku Referensi