by Ir. M. Lies Suprapti $6.00
by Ir. Hieronymus Budi Santoso $5.00
by St. Darmawijaya, Pr. $4.00
by $7.00
by O'Keefe, Susan Heyboer $6.00
by Ir. Setijo Pitojo $6.00
by Sjadzali, H. Munawir $6.00
by Nursalam $7.00
by Nursalam $9.00