Royama, T.
Chapman & Hall, 1992
Buku Teks
Cushing, Jim M., 1942- , author
Society for Industrial and Applied Mathematics, 1998
eBooks
edited by Colleen K. Kelly, Michael G. Bowler, Gordon A. Fox
Cambridge University Press, 2013
Buku Teks
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2013
UI - Makalah dan Kertas Kerja
edited by Michael J. Crawley
Blackwell, 1992
Buku Teks