Loomis, Charles P.
Prentice Hall Inc., 1957
Buku Teks
Kusnaka Adimihardja, author
Humaniora Utama Press, 2001
Buku Teks
Gadjah Mada University Press , 1996
Buku Teks
Mercu Buana University, T.th
Buku Teks
Rachmanto Widjopranoto
BPPS-Depsos RI , 1971
Buku Teks