by Prof. Dr. Abuddin Nata, MA $9.00
by Prof. Djaali $0.00
by Salim bin led $5.00
by Sachiko Murata $5.00
by Akhmad Taufik, M.Pd., dkk $11.00
by Prof. Dr. Husaini Usman, M.Pd dan R. Purnomo Setiady Akbar, S.Pd., M.Pd $6.00