Soka University, [date of publication not identified]
Buku Referensi
Fakultas Teknik Universitas Indonesia, 2002
UI - Skripsi (Membership)
Fenny Andreayani, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Mi, Fu
Henri Vetch, 1938
Buku Teks
W.W. Norton & Company, Inc, 1998
Buku Teks