by Drs. Syaiful Bahri Djamarah $9.00
by Stefanus Pranjono $7.00
by Khalid I. Jindan $7.00
by Dr. Khalid Abu Syadi $5.00
by Dr. K.H. Didin Hafidhuddin, M.Sc $9.00
by Muhammad ash-Shayim $6.00