by Prof. Dr. Husaini Usman, M.Pd & R. Purnomo Setiady Akbar, S.Pd., M.Pd $11.00
by Chris Dyer $9.00
by Andi Widjajanto, dkk $7.00
by R.S. Dr. Cipto Mangunkusumo $7.00
by Drs. Abdulsyani $9.00
by Dr. Franz Magnis-Suseno $5.00