by - $12.00
by Pandji Anoraga, S.E, M.M $9.00
by Drs. G. Kartasapoetra $9.00
by Drs. Thomas Suyatno, dkk $9.00
by - $7.00
by Eugene L. Grant. Terj. Drs. E. Komaruddin $13.00
by Mira W. $7.00
by Dr. Dukut Respati Kastomo $11.00
by Adrian Perkasa $4.32