Matius Jusuf, author
Minerva Athena Pressindo, 2009
Buku Teks
Rizki Kumoro Setiadi, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi Membership
Tibaijuka, Anna Kajumulo, author
earthscan, 2009
Buku Teks
Dewberry and Davis, author
McGraw-Hil, 1996
Buku Referensi
Dewberry and Davis, author
McGraw-Hill, 1996
Buku Referensi