by Ir. Budi Samadi $0.00
by J. Donald Walters $5.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by Ellen Sue Stern $9.00
by Dr. C. Groenen, OFM. $7.00
by I. Bambang Sugiharto & Agus Rachmat W $11.00