Zainul Arifin, author
Alvabet, 2000
Buku Teks
Muhammad, author
Graha Ilmu, 2005
Buku Teks
Zainul Arifin, author
Alvabet, 1999
Buku Teks
Universitas Indonesia, 2004
UI - Skripsi (Membership)
Dinda Dinia, author
Fakultas Hukum Universitas Indonesia, 2006
UI - Skripsi (Membership)