Carrithers, Wallace M.
C.E. Merrill Books, 1967
Buku Teks
Pascal Lahai Roy, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi (Membership)
Tri Nugro Susilo, author
Fakultas Ilmu Komputer Universitas Indonesia, 2013
UI - Tugas Akhir
Hall, James A., 1944-, author
Cengage Learning, 2016
Buku Teks
Bodnar, George H., author
Prentice-Hall, 1998
Buku Referensi