by Dr. C. Groenen, OFM. $9.00
by John Kirvan $6.00
by Tim Boga GPU $7.00
by Halimuddin, S.H $7.00
by Ir. Nur Tjahjadi $5.00
by Arifin Pasaribu $5.57
by Nasution, Harun $6.00
by $9.00
by Tanenbaum $16.00
by WK $9.00
by CAL OREY $7.00
