Gardner, Eldon J., author
Burgess Publishing, 1965
Buku Teks
Massachusetts The MIT Press, 1992
Buku Teks
MIT Press, 1992
Buku Teks
Henderson, I. F., author
Harlow, England Longman Scientific and Technical
Buku Referensi
Martinus Nijhoff, 1963
Buku Referensi