by Drs. Abdul Chaer $9.00
by Fachruddin H.S $6.00
by Drs. Amin W. Tunggal Ak., M.B.A $22.00
by Dr. Mien A. Rifai., dkk $11.00
by Drs. G. Kartasapoetra $7.00
by Iwan Prayogo Suryohadibroto $12.00
by Jim Taylor, Ph.D. $11.00