Artikel Jurnal
Niko Amrulloh
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Tesis (Membership)
Milne, David H.
Wadsworth, 1995
Buku Teks
Ernesto Fattorusso, William H. Gerwick, Orazio Tagliatela-Scafati
Springer , 2012
Buku Referensi
edited by Ernesto Fattorusso, William H. Gerwick and Orazio Taglialatela-Scafati
Springer, 2012
Buku Referensi