by Royyad al-Haqil $5.00
by Ir. Hieronymus Budi Santoso $5.00
by Drs. Aloysius Soenarto & Stanislaus Suliangto $3.00
by Dr. Ir. H.S. Farid Ruskanda, M.Sc. A.P.U. $5.00
by Choiruddin Hadhiri S.P. $7.00
by Sidney Callahan $7.00