Syaraf al ummah al muhammadiyah.
Judul Asli : Contextual teaching and learning : what it is and whatr it;s here to stay
Judul asli : Arruh Ibnil Qayyim
Bibliografi : hlm. 103-104
Judul asli : Central problems in social theory : action, structure, and contradiction in social analysis
Judul asli: al fawaaid.