Sokoloff, Kiril, author
McGraw-Hill/Irwin, 1984
Buku Teks
Dewi Setyaningrum, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi (Membership)
Calverley, John
American Express Bank , 1994
Buku Teks
Siagian, Bekman, author
Universitas Indonesia, 2017
UI - Disertasi (Membership)
Maria Yohana Gabriela Jacoub, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Skripsi (Membership)