Cumming, James C.
Fairchild , 1955
Buku Teks
Emerald,
Majalah, Jurnal, Buletin
Didik Setiawan, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Tesis Membership
Tizia Noveira Aryani, author
Universitas Indonesia, 2010
UI - Tugas Akhir
Fenich, George G., author
Pearson, 2019
Buku Teks