by Ir. H. Rahmat Rukmana, MBA., M.Sc. & Uu Sugandi Saputra, B.Sc $6.00
by A. Widyamartaya, B.A $3.00
by J. Donald Walters $5.00
by Dra. Kumara Poespo $12.00
by Robert W. Hefner $16.00
by Ir. Heinz Frick & Pujo L. Setiawan $7.00