edited by Patrick W. Colgan
John Wiley & Sons, 1978
Buku Teks
Callan, Hilary
Oxford University Press , 1970
Buku Teks
Day, R.A., author
Prentice-Hall, 1958
Buku Teks
Pierce, Willis Conway, author
John Wiley & Sons, 1958
Buku Teks
Alexeyef, V., author
Mir, 1969
Buku Teks