Dixon, Martin, author
Blackstone Press limited, 2000
Buku Teks
Oppenheim, L., author
Longmans, Green, 1969
Buku Teks
Oppenheim, L., author
Longmas, Green , 1955
Buku Teks
Oppenheim, L., author
Longmas, Green , 1960
Buku Teks
Oppenheim, L., author
Longmas, Green , 1961
Buku Teks