by I.P.M. Ranuhandoko $16.00
by Prof. Mr. Dr. Sudargo Gautama $7.00
by Prof. Mr. Dr. Sudargo Gautama $6.00
by Bagir Manan $7.00
by Prof. Mr. Dr. Sudargo Gautama & Rizawanto Winata, S.H. $8.00
by Ir. Sujamto $7.00