Routledge, 1991
Buku Teks
Haggett, Peter, author
Prentice-Hall, 2001
Buku Teks
Boyce, Ronald Reed, author
John Wiley & Sons, 1982
Buku Teks
Fuson, Robert H.
Kendall/Hunt Publishing Co., 1977
Buku Teks
Reno Aldiano, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013
UI - Skripsi (Membership)