Clinton, Bill
Arrow Books, 2008
Buku Teks
Yolanda Normagupita
2017
UI - Skripsi (Membership)
edited by Allen M. Omoto
Lawrence Erlbaum Associates, 2005
Buku Teks
Maria Laksmi Indriyastuti
2015
UI - Tugas Akhir
Arianto Suthan
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2009
UI - Tesis (Open)