Vernon-Wortzel, Heidi, author
John Wiley & Sons, 1991
Buku Teks
Nababan, Juan Sumando, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2011
UI - Tesis (Open)
Richard D. Irwin, inc., 1990
Buku Teks
Siegel, Eric S.
John Wiley & Sons, 1987
Buku Teks
Mawaddah Akmalia, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
UI - Tesis (Membership)