by M. Yahya Harahap, S.H. $16.00
by Drs. Frans Bona Sihombing (Ed) $11.00
by $16.00
by Prof. Mr. Dr. Sudargo Gautama $6.00
by Prof. Drs. C.S.T. Kansil, S.H. $11.00
by Salim HS $12.00