Ripley, Brian D., author
John Wiley & Sons, 1981
Buku Teks
Manurung, Elise Natalia, author
Universitas Indonesia, 2018
UI - Tesis Membership
Christ Holy Phillgrad Tatipatta, author
2018
UI - Skripsi Membership
edited by Badi H. Baltagi, James P. Lesage, R. Kelley Pace
Emerald, 2017
eBooks
Cressie, Noel A. C.
John Wiley & Sons, 1993
Buku Teks