Beards, Peter H
Prentice-Hall, 1991
Buku Teks
Astrid Vega Septyanti, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2017
UI - Skripsi Membership
Millman, Jacob, author
Erlangga, 1985
Buku Teks
Millman, Jacob, author
McGraw-Hill , 1972
Buku Teks
Millman, Jacob, author
McGraw-Hill, 1972
Buku Referensi