by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk
$11.00

by E. Jaspan Kusuma
$6.00

by Tongat, S.H., M.Hum
$9.00

by Prof. Dr. Ali Abd. Halim Mahmud
$11.00

by M. Idris Ramulyo, S. H., M. A.
$7.00

by W.P. Groeneveldt
$9.00