Lovaglia, Anthony R., author
Harper & Row, 1966
Buku Teks
Wheeler, Ruric E., author
Brook/Cole, 1969
Buku Teks SO
Wheeler, Ruric E., author
Brooks/Cole, 1967
Buku Teks SO
Wheeler, Ruric E., author
Brooks/Cole, 1970
Buku Teks SO
Willson, Jack D.
McGraw-Hill , 1967
Buku Teks SO