Phares Odaffer, Randall Charles, Thomas Cooney, John Dossey, Jane Schielack
Pearson Addison Wesley, 2008
Buku Teks SO
Nichols, Eugene D.
Holt, Rinehart and Winston, 1971
Buku Teks SO
Garstens, Helen L.
Macmillan, 1969
Buku Teks SO
Victor, Edward
Macmillan, 1966
Buku Teks
Renner, John W.
Harper & Row, 1968
Buku Teks