by Prof. drh. Charles Rangga Tabbu, M.Sc., Ph.D $18.00
by Ir. L. Widarto & FX. Sudarto C. Ph $5.00
by AL. Andang Listya Binawan, SJ (Penyunting) $6.00
by $18.00
by Ir. Hieronymus Budi Santoso $5.00
by Bambang Agus Murtidjo $6.00