Deris Yuhetra, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2014
UI - Skripsi Membership
Warf, Barney, editor
Springer, 2012
eBooks
Thatcher, W.S., author
English University Press, 1957
Buku Teks
Wheeler, James O., author
John Wiley & Sons, 1986
Buku Teks
Hartshorn, Truman Asa, author
Prentice-Hall, 1988
Buku Teks