by $4.00
by Drs. Wishnubroto Widarso $5.00
by Dr. Ir. H.S. Farid Ruskanda, M.Sc. A.P.U. $5.00
by Prof. Dr. S.C. Utami Munandar $11.00
by Dr. Nico Syukur Dister, OFM. $8.00
by Ahmad Syarifuddin $7.00