by Muhammad ash-Shayim $5.00
by Prof. Dr. Kees Bertens, MSC $6.00
by Emanuel Gerrit Singgih, Ph.D. $7.00
by Sayyid Shaleh Al-Ja'fari $7.00
by Muhibbin Syah, M.Ed $9.00
by W. Mangoendidjojo $9.00