by Eko Purnomo $6.00
by Ir. Yushinta Fujaya, M.Si $7.00
by Adolf Schacfht, Drs. Hafifi $20.00
by Prof. Dr. Utami Munandar $11.00
by Drs. B. Suryosubroto $9.00
by Prof. Dr. Dendasurono P $7.00
by Prof. I. R. Poedjawiyatna $7.00
by Darminta, J, SJ $4.00
by Alfons Taryadi (Penerjemah) $11.00
by Mohammad As Sa'dawi $5.00
by Indriani $7.00