by Prof. Dr. J.E. Sahetapy, S.H.
$3.00

by Prof. DR. dr. S.M. Lumbantobing, SpS(K), SpKJ
$6.00

by KH. Zainal Arifin Dj
$6.00

by Sawidji Widoatmodjo, S.E
$9.00

by Subekti
$6.00

by Ir. Heri Purnama
$11.00