by Prof. Dr. Mariam Darus Badrulzaman, S.H. $8.00
by H.P. Panggabean, S.H. $6.00
by Ir. H. Djoko Tribawono, M.Si. $6.00
by Sentosa Sembiring, S.H., M.H. $5.00
by Leden Marpaung, S.H. $11.00
by M. Idris Ramulyo, S. H., M. A. $7.00