Bergstrom, Harald, author
Academic Press, 1982
Buku Teks
Billingsley, Patrick, author
Society for Industrial and Applied Mathematics, 1971
eBooks
Billingsley, Patrick, author
John Wiley & Sons, 1968
Buku Teks
Universitas Indonesia, 1996
UI - Skripsi (Membership)
Roussas, George G., author
Academic Press, 2014
eBooks