by Bryan Magee $0.00
by Ir. Eddy Afrianto & Ir. Evi Liviawaty $6.00
by L. Prasetya, Pr. $6.00
by Drs. Agus M. Hardjana, M.Sc., Ed $5.00
by Molly Wigand $6.00
by J. Darminta, SJ $3.00