by DR. Dr. Sidartawan Soegondo, SpPD-KEMP, FACE $11.00
by Dripa Sjabana $7.00
by Ir. Hieronymus Budi Santoso $5.00
by Ir. H. Rahmat Rukmana $6.00
by Ir. Setijo Pitojo $6.00
by Ir. Heinz Frick & Pujo L. Setiawan $7.00