Freeman, R. Edward
Cambridge University Press, 2018
Buku Teks
Dianty Rizki Roosmanty
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2021
UI - Tugas Akhir
Wulf, Katharina
Gabler Verlag, 2012
eBooks
Rezaee, abihollah
John Wiley & Sons, 2009
Buku Teks
Weiss, Joseph
Wadsworth, 2009
Buku Teks SO