Shinn, George
Interaksara, 2003
Buku Teks
Hapsari Setyowardhani
Management, Faculty of Economics, University of Indonesia and Philip Kotler Center, 2012
Artikel Jurnal
Erika Elifiani
2010
UI - Tesis (Membership)
Choirunissa Melinda
2015
UI - Skripsi (Membership)
Gresty Natalia Maria Masi
Fakultas Ilmu Keperawatan Universitas Indonesia, 2016
UI - Tesis (Membership)