by Ridwan HR $12.00
by Prof. DR. M. Solly Lubis, SH. $5.00
by M. Yahya Harahap, S. H. $30.00
by $5.00
by Titi Maria $9.00
by - $5.00
by Saidin, SH $18.00
by Lars Forssblad $9.00
by DR. Ir. Hj. Tati Nurmala, S.W $6.00