by R. Soeparmono, SH. $6.00
by Redaksi (Penghimpun) $16.00
by Leden Marpaung, S.H. $7.00
by Lembaga Kajian Hukum Bisnis FH USU Medan $6.00
by Kansil C.S.T $11.00
by Reni Dwi Purnomowati $11.00