by Ir. H. Rahmat Rukmana, MBA., MSc. $5.00
by Elizabeth Ruth Obbard, ODC $6.00
by Prof. drh. Charles Rangga Tabbu, M.Sc., Ph.D $13.00
by Dr. Shaleh Ghanim $5.00
by Ir. Hieronymus Budi Santoso $5.00
by Hasan Hanafi $9.00