by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by M. Yahya Harahap, S.H. $16.00
by Salim H. S., S. H., M. S., dkk. $9.00
by Kenny Wiston, S.H., M.H. $3.00
by Brownlie, Ian $11.00
by John Salindeho $12.00