by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by Jaih Mubarok $9.00
by M.L. Jhingan $13.00
by Rob Faigin $12.00
by Drs. Adami Chazawi, SH $7.00
by Prof. Dr. C.S.T Kansil & S.T Kansil Christine , S.H $8.00