Lubis, Siti Zubaedah Agustina, author
Universitas Indonesia, 2006
UI - Skripsi (Membership)
Artikel Jurnal
Loebby Loqman, author
[publisher not identified], [date of publication not identified]
Buku Teks
Mokhamad Amirudin, author
Universitas Indonesia, 2001
UI - Skripsi (Membership)
Artikel Jurnal