by Ir. Hatta Sunanta, B.Sc., MS $5.00
by Alex Lanur, OFM $6.00
by Prof. Dr. dr. Pinardi Hadidjaja, MPH & TM $5.00
by $4.00
by Endang S $5.00
by Siti Rahayu - Titiek F. Djaafar $5.00