by A. Sonny Keraf & Mikhael Dua $7.00
by Sumadi Suryabrata $11.00
by Ir. Setijo Pitojo $6.00
by Agustinus Sarwanto, SJ & Veronica Riestasari $6.00
by Robert H. Thouless $7.00
by Frank Mihalik, SVD $9.00