edited by Adolfo Paolini
Edward Elgar Publishing, 2016
Buku Teks
Bruce, Martha
Bloomsbury Proffesional, 2012
Buku Teks
Causey, Denzil Y.
Dow-Jones Irwin , 1982
Buku Teks
Universitas Indonesia, 2016
UI - Skripsi (Membership)
Wallace, I.N. Duncan
Sweet & Maxwell, 1970
Buku Teks