Riyati Yarmani, author
Universitas Indonesia, 1987
UI - Skripsi (Membership)
Leahly, Lovis
Jakarta Gramedia 1988,
Buku Teks
Muhammad Dahlan, author
1998
UI - Tesis (Membership)
Artikel Jurnal
Leahy, Louis, 1927-, author
Gramedia Pustaka Utama, 1993
Buku Teks