by Arief Sardiman, dkk
$11.00

by Pandji Anoraga, S.E., M.M dan H. Djoko Sudantoko, S.Sos., M.M
$13.00

by Abdul Rachman Shaleh
$12.00

by H.A.R. Tilaar
$11.00

by Drs. CST. Kansil, S.H
$13.00

by Abuddin Nata
$7.00