by Prof. Moeljatno, S.H $7.00
by Richard A. Bilas $13.00
by Henry Simamora, S.E $18.00
by Halili Toha, S.H $6.00
by Dr. W. Herdin Sibuea., dkk $7.00
by Buckle, K.A., dkk $7.00
by Ir. Dede Juanda J.S. & Ir. Bambang Cahyono $6.00
by - $13.00