Fiqhussunnah.
Bibl. hlm. 81-82.
Judul asli: Addinu Lisy-Sya'bi. SHJ 2X0.32.
SAS 2X0.303 4.
Bibliografi : halaman 123 - 125
Judul asli : The behavioral foundation of public policy
Judul asli: The educational philosophy and practice of syed muhammad naquib al-attas.