Rotzoll, Kim B.
South-Western Publishing Co., 1986
Buku Teks
Sandage, C.H.
Richard D. Irwin, 1961
Buku Teks
Sandage, C.H.
Richard D. Irwin, 1960
Buku Teks
Bovee, Courtland L.
Richard D. Irwin, 1989
Buku Teks
Arens, William F.
Irwin /McGraw-Hill, 1999
Buku Teks