by Prof. Dr. Ami Muhammad $9.00
by Dr. Sjarkawi, M.Pd $7.00
by Eileen Rachman (Kata Pengantar) $7.00
by Robert T. Kiyosaki $9.00
by Mohammad Ali $9.00
by Prof. Subowo, dr. M.Sc., Ph.D $7.00
by Insan Budi Maulana, S.H., LL.M. $8.00