by Drs. H. Abu Ahmadi
$11.00

by Prof. Drs. S. Pamudji, M.P.A
$11.00

by Prof. Dr. S. Nasution, M.A.
$9.00

by Drs. Abas Kartadinata
$7.00

by Ko Nomura, Latifah Hendarti
$9.00

by Dr. C. Asri Budiningsih
$7.00