by ST. Sularto $7.00
by Miller, Mary Susan, Ph.D $0.00
by Santoso, Slamet Iman $7.00
by Abdul Rachman Shaleh $11.00
by Dra. Zuhairini, dkk $9.00
by Prof. Dr. Oemar Hamalik $9.00
by Y.B. Mangunwijaya $11.00