by Dr. W. Herdin Sibuea., dkk $7.00
by Ir. F.X. Susanto Tumpal HS. Siregar $5.00
by Prof. J. Suprapto, M.A. APU $11.00
by Drs. Amin Wijaja Tunggal, M.B.A $7.00
by Ir. Budi Samadi $6.00
by J. Stallard, Terj. Drs. Hasymi Ali $11.00