Milroy, Robert R., author
Houghton Mifflin, 1960
Buku Teks
Voorhis, Robert H. van, author
McGraw-Hill, 1963
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