by Drs. Abdullah Ali, Drs. Misbandono, dan Ir. Eny Rahma $7.00
by - $11.00
by W. James Popham $7.00
by Dra. Ahmad Rohani H.M., M.Pd $9.00
by Agus Sunyoto $9.00
by Glenda Crosling, Graeme Atherton, Siti Norbaya Azizan $59.99
by Sudaryatmo, S.H. $6.00
by Al. Wisnubroto & G. Widiartana $5.00