Bayu Wibiyanto, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2007
UI - Skripsi (Membership)
Sony Set
Andi, 2007
Buku Teks
Kunkel, Paul, author
Laurence King Publishing, 1999
Buku Referensi
Molly Andrews, Corinne Squire, Maria Tamboukou, editor
Sage, 2009
Buku Teks
Martin, David W., 1943-, author
Thomson, Wadsworth, 2008
Buku Teks