by $6.00
by Marihot P. Siahaan, S.E. $12.00
by Prof. Dr. H. Zainuddin Ali M. A. $7.00
by Prof. Irfan Iskandar, S.H. $5.00
by R. Soeroso, S.H. $11.00
by Boedi Harsono $6.00