Ananthanarayanan, P. N., author
Tata McGraw-Hill, 1982
Buku Teks
Althouse, Andrew D. (Andrew Daniel), author
The Goodheart-Willcox, 1956
Buku Teks
Jordan, Richard C. (Richard Charles), 1909-, author
Prentice-Hall, 1981
Buku Teks
Artikel Jurnal
Thomas Andreas Kadi, author
1995
UI - Skripsi (Membership)