Whitlam, E.G.
Widescope, 1977
Buku Teks
Maqdir Ismail
FH Universitas Al-Azhar Indonesia, 2007
Buku Teks
Crawford, R.M.
Hutchinson's University Library, 1955
Buku Teks
Crawford, R.M.
Hutchinson University Library, 1952.
Buku Teks
Berney, Maurice
Angus and Robertson, 1965
Buku Teks