Davidson, Russell, author
Oxford University Press, 1993
Buku Teks
Ramanathan, Ramu, author
Orlandno Harcourt Brace Jovanovich College, 1992
Buku Teks
Johnson, Aaron C., author
Macmillan, 1989
Buku Teks
Klein, Lawrence R., author
Basil Blackwell Publisher , 1985
Buku Teks
Malinvaud, Edmond, author
North-Holland , 1980
Buku Teks