by Prof. Dr. Veithzal Rivai
$12.00

by Prof. Drs. C.S.T. Kansil, S.H.
$9.00

by Marihot P. Siahaan
$13.00

by -
$12.00

by Prof. Purnadi Purbacaraka, S.H. & Chidir Ali, S.H.
$3.00

by Djumadi
$7.00