Voorhis, Robert H. van, author
McGraw-Hill, 1963
Buku Teks
Milroy, Robert R., author
Houghton Mifflin, 1960
Buku Teks
Glautier, M.W.E., author
Pitman, 1997
Buku Teks
Glautier, M.W.E., author
Pitman, 1988
Buku Teks
Glautier, M.W.E., author
Pitman, 1991
Buku Teks