by Abuddin Nata
$12.00

by Moenaf H. Regar
$7.00

by M.E. Dicks
$6.00

by Prof. Dr. H. Zainuddin Ali, M.A
$7.00

by Drs. Ec. Alex. S. Nitisemito dan Drs. M. Umar Burham. M.S
$6.00

by Dra. Nurul Zuriah, M.Si
$11.00