editor, Brian J. Rusbridge
Municipal Journal Limited, 1995
Buku Referensi
editor, Brian J. Rusbridge
Municipal Journal Limited, 1990
Buku Referensi
Hendrick House, 1955
Buku Teks
J. Whitaker and Sons, 1994
Buku Referensi
R. W. Bemer [and others]
Dilitihum, 1980
Buku Teks