by Ir. Ari Wijayani Purwanto $11.00
by Imam Al-Ghazali $9.00
by Drs. Suyadi Prawirosentono, MBA $0.00
by Daniel J. Mueller $7.00
by Drs. Ibnu Syamsi, S.U $9.00
by Bambang Agus Murtidjo $7.00