by Victor Situmorang, S.H $9.00
by Prof. DR. Taliziduhu Ndraha $9.00
by - $7.00
by Drs. Ibnu Syamsi, S.H $7.00
by Drs. H. Burhanuddin Salam, M.M $11.00
by Hilman Soetanto $16.00
by Prof. Dr. Suharsimi Arikunto, dkk $7.00
by Dra. Rostamailis $9.00
by Thalib, Sajuti $6.00