Titchmarsh, E, C.
Chelsea Publishing Company, 1990
Buku Teks
Bloomfield, Peter, author
John Wiley & Sons, 1976
Buku Teks
Misfaruddin, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1987
UI - Skripsi (Membership)
Brown, James Ward, 1934-, author
McGraw-Hill, 2012
Buku Teks
Brown, James Ward, 1934-, author
McGraw-Hill, 2012
Buku Teks