Mann, Charles C., author
Harvard Business School Press, 1991
Buku Teks
Zita Arieselia, author
Fakultas Kedokteran Universitas Indonesia, 2009
UI - Tesis (Open)
Song, Ong Siang, author
University Malaya Press, 1967
Buku Teks
Robertson, Ben, author
University of queensland press, 2010
Buku Referensi
Marcia Dewi Hartanto, author
Universitas Indonesia, 2008
UI - Tesis (Open)