Jutri Taruna, author
2000
UI - Tesis (Membership)
Levitt, Malcolm H., author
John Wiley & Sons, 2001
Buku Teks
Samson Clymton, author
2018
UI - Tesis (Membership)
Artikel Jurnal
Sirait, Evi Damaiyanti, author
Universitas Indonesia, 2006
UI - Tesis (Membership)