by Victor Situmorang, S.H $7.00
by Drs. Hadiyanto, M.Ed $9.00
by Richard A. Bilas $13.00
by Prof. Dr. Sudarwan Danim $11.00
by Drs. Sudarsono, S.H., M.Si $7.00
by Prof. I. R. Poedjawiyatna $7.00