Baker, Henry Givens
Division of Research. School of Business Administration , 1953
Buku Teks
Barker, Clare Wright
McGraw-Hill Book Co. , 1956
Buku Teks
Devita Putri Hetasari, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2011
UI - Tesis (Open)
Ferry, John William, author
Macmillan, 1960
Buku Teks
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1990
UI - Skripsi (Membership)