by Richard G. Lipsey & Peter O. Steiner $16.00
by Sudarwan Danim $7.00
by Dr. Rhenald Kasali $7.00
by Darmadi D., dkk $7.00
by Luqman-nul Hakim , Frans A Djalong , Mohtar Mas’oed $21.00
by Kartadjoemena, H.S $9.00