by Victor Situmorang, S.H $7.00
by Harold G. Shane $6.00
by Muhaimin $9.00
by Dr. Farida Rahim, M.Ed $7.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $12.00
by Dr. Ahmad Jayadi, M.Pd $7.00