edited by Kenneth J. McNaughton
McGraw-Hill , 1984
Buku Teks
Yahya, S. M
McGraw-Hill Education LLC., 2011
Buku Teks
Church, Austin H.
Erlangga, 1986
Buku Teks
Church, Austin
Robert E. Krieger Publishing Company, 1972
Buku Teks
Rishel, James B.
Mcgraw-Hill, 2002
Buku Referensi