by B.B. Triatmoko, SJ $4.00
by Dr. E.G. Brahmaputra Marjadi, M.P.H $7.00
by Jaelani, S.Si $7.00
by H. Rahmat Rukmana $6.00
by Ir. M. Lies Suprapti $9.00
by Fathimah Usman $6.00