Napitupulu, Imelda, author
Universitas Indonesia, 1997
UI - Skripsi (Membership)
Sudarto, author
1994
UI - Tesis (Membership)
Hutagalung, Fabiola, author
Universitas Indonesia, 1996
UI - Skripsi (Membership)
Hanvinson, author
1996
UI - Tesis (Membership)
Universitas Indonesia, 2007
UI - Skripsi (Membership)