by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by Bungaran Antonius Simanjuntak $23.00
by Ernest Dichter $9.00
by Thomas A. N. S $6.00
by ISEI $26.00
by Dr. Budi Susanto, SJ (Editor) $13.00
by P. S. Siswoputranto $13.00