Renner, John W.
Harper & Row, 1968
Buku Teks
Blough, Glenn O.
Holt, Rinehart and Winston, 1964
Buku Teks
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