by Eileen Rachman (Kata Pengantar) $7.00
by Drs. H.M. Yacob Ibrahim $11.00
by Drs. Suwarna Pringgawidagda, M.Pd $18.00
by Drs. Ig. Wursanto $7.00
by Prof. Dr. Sondang P. Siagian, M.P.A $11.00
by Anthony Giddens $6.00
by James Redfield $9.00