by Dr. Bahder Johan Nasution, S.H., S.M., M.Hum
$7.00

by Drs. Muchdarsyah Sinungan
$12.00

by Alleen H. Lipis, dkk
$9.00

by Drs. O.P. Simorangkir., dkk
$11.00

by John Z. Loudoe, S.H
$7.00

by J. Robert Starratt
$7.00