by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by Dr. Drs. H. Mohammad Zain, Ak.& Drs. H. Dodo Syarief Hidayat $8.00
by Adolf Schacfht, Drs. Hafifi $20.00
by Ir. Suharto $9.00
by - $11.00
by $7.00