Shurter, Robert L.
McGraw-Hill, 1959
Buku Teks
Hult, Christine A., author
2016
Buku Teks
Shurter, Robert L.
McGraw-Hill, 1957
Buku Teks
Wilson, George P., author
F.S. Crofts, 1947
Buku Teks
Cutts, Martin, author
Oxford University Press, 1995
Buku Teks