Boehm, E.A.
Longman, 1971
Buku Teks
Ohkawa, Kazushi
Stanford University Press, 1973
Buku Teks
Ohkawa, Kazushi
Stanford University Press, 1973
Buku Teks
Shaw, Alan George Lewers
Longman, Green, 1955
Buku Teks
Reese, Trevor R.
F.W. Cheshire, 1964
Buku Teks