by Robert P. Masland $7.00
by Prof. Djaali $0.00
by Prof. Dr. Husaini Usman, M.Pd dan R. Purnomo Setiady Akbar, S.Pd., M.Pd $6.00
by Eko P. Pratomo $12.00
by Irma Setyowati Soemitro, S.H $6.00
by - $13.00
by WK $12.00