Nelkon, M.
Heineman Educational, 1962
Buku Teks
Stehle, Philip
Harper & Row , 1971
Buku Teks
Bolton, William, 1933-
McGraw-Hill, 1976
Buku Teks
Nanda Miftahul Khoyri
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2013
UI - Skripsi Membership
Wendy Brown ... [and others] ; edited by Jonathan Ling
Longman Singapore Publishers, 1995
Buku Teks