by Ny. Lim
$9.00

by Prof. Ir. Amris Makmur
$6.00

by Dr. Ir. Kemas Ali Hanafiah, M.S., dkk
$7.00

by Prof. Abdulkadir Muhammad, S.H.
$5.00

by WK
$13.00

by Salim HS, S. H., M. S.
$11.00