by - $16.00
by Dhedy Rizaldy $11.00
by Ir. Rustam Hakim $9.00
by G. Kartasapoetra, dkk $9.00
by Prof. Dr. dr. I.G.N. Wila Wirya, Prof. dr. Husein Alatas $5.00
by Hilman Hariwijaya $6.00