edited by J.F. White
Prentice-Hall, 1962
Buku Teks
Wilson, Gilbert, author
George Allen, 1982
Buku Teks
Pasya Damadyakta, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2022
UI - Skripsi Membership
Butler, B.C.M., author
Longman Scientific & Technical , 1988
Buku Teks
Bates, Robert L., editors
Anchor Books, 1984
Buku Referensi