by Ir. Hieronymus Budi Santoso $5.00
by Kamarwan, Sidharta S $6.00
by WK $11.00
by Asiyanto $6.00
by Syamsir Abduh $9.00
by WK $9.00
by Amiruddin & Zainal Asikin $9.00
by Tanenbaum $13.00
by Hendra Sutardhio $9.00
by Dr. Thomas Gordon $6.00
by Hetifah $20.00
by Tobi Moektijono $5.00