[publisher not identified], [date of publication not identified]
Naskah
Ashar Ardianto, author
2017
UI - Skripsi (Membership)
[publisher not identified], [date of publication not identified]
Naskah
[publisher not identified], [date of publication not identified]
Naskah
Setia Dermawan Purba, author
1994
UI - Tesis (Membership)