by Leden Marpaung, S.H. $7.00
by Kansil C.S.T $12.00
by Prof. DR. R. Van Dijk $6.00
by Prof. Dr. Barda Nawawi Arief, S.H. $6.00
by Titi Maria $9.00
by - $6.00
by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk $11.00
by Aji Supriyanto $16.00
by Sapto Waluyo $5.00