by Paul A. Freund [and others]
Little, Brown, 1966
Buku Teks SO
by Paul A. Freund [and others]
Little, Brown, 1954
Buku Teks SO
edited by George W. Keeton and Georg Schwarzenberger
Stevens and Sons, 1948
Buku Teks SO
Gaa, Charles J.
McGraw-Hill, 1965
Buku Referensi
Meislich, Estelle K.
McGraw-Hill, 1993
Buku Teks