by Barda Nawawi Arief
$7.00

by Ir. C. Totok Sutrisno
$6.00

by Prof. Abdulkadir Muhammad, S.H.
$8.00

by Prof. J. Suprapto, M.A. APU
$11.00

by Idi Setiyobroto, dkk
$6.00

by A. Gaffar Karim
$6.00