Porter, Lindsay
Porter Publishing, 1995
Buku Referensi
Jain, S.C.
Tata McGraw-Hill , 1980
Buku Teks
Dempsey, Paul
McGraw-Hill, 2010
Buku Teks
Michael G. Grantham, editor
Routledge, 2011
Buku Teks
Arsya Rasyadan
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
UI - Tesis (Membership)