by Prof. Dr. C.S.T Kansil & S.T Kansil Christine , S.H $11.00
by M. Yahya Harahap, S.H. $8.00
by Prof. Dr. Soerjono Soekanto, S.H., M.A. $3.00
by Prof. Dr. Mariam Darus Badrulzaman, S.H. $6.00
by $7.00
by Prof. Mr. Dr. Sudargo Gautama $6.00