by Prof. Mr. Dr. Sudargo Gautama $7.00
by Prof. Mr. Roeslan Saleh $5.00
by Dr. Andi Hamzah, S.H. $7.00
by - $6.00
by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by Drs. M. Djohan Qoyim $5.00
by $16.00
by Muhammad Muflih $7.00