by Hasan Musa esh-Shaffar $5.00
by K.H. Moenawar Chalil $11.00
by J. Donald Walters $5.00
by Srikandi Fardiaz $7.00
by Ir. Ari Wijayani Purwanto $9.00
by Dr. H. Miftah Faridl $7.00