by Ir. Loekas Soesanto, M.S., Ph.D $11.00
by Ir. Setijo Pitojo $7.00
by Prof. Dr. Soekartawi $7.00
by $4.00
by Agus S. Gunadi $7.00
by AAK $6.00
by Ibnu Taimiyah $9.00
by A. M. Putut Prabantoro $6.00
by Drh. Nabari Tarigan, MSc $6.00
by Bole Malo, Agustinus $5.00
by - $12.00
by - $16.00