Ritonga, Hatuaon A.W., author
1993
UI - Skripsi (Membership)
Ivan Surya, author
1994
UI - Skripsi (Membership)
Ivan Surya, author
1994
UI - Tesis (Membership)
R. Wijaya Kusuma W., author
1993
UI - Skripsi (Membership)
Harinaldi, author
1992
UI - Skripsi (Membership)