by Ir. Adiwarman Karim, SE, MBA, MAEP $7.00
by Said Hawwa $7.00
by Frans Harjawiyata, OCSO $4.00
by Von Julius Schnorr Von Carolsfeld $0.00
by Ign. Wignyasumarta, MSF. $6.00
by Mohammad As Sa'dawi $5.00