Crump, Norman
MacMillan & Co. Ltd, 1952
Buku Teks
Dimas Angga Negoro. author
2007
UI - Tesis Membership
Edwina Pinka Anggarani, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Skripsi Membership
edited by Stephan F. Miescher, Michele Mitchell and Naoko Shibusawa
John Wiley & Sons, 2015
Buku Teks
Isyana Diah Wardhani, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2012
UI - Tesis Open