by Prof. Dr. Zaghloul an-Najjar $6.00
by Drs. Syaiful Bahri Djamarah $7.00
by Dr. M. Umar Chapra $9.00
by Anastasia Maria Sri Kusumoretno $5.00
by Dr. Aidh Al-Qami $13.00
by J. Donald Walters $5.00