by Drs. Hasbullah
$6.00

by Dr. Ir. Akhmad Fauzi, M.Sc. & Dr. Dra. Suzy Anna, M.Si
$12.00

by
$6.00

by
$5.00

by Soekartawi, dkk
$7.00

by Prof. DR. H. Lili Rasjidi, SH,S,Sos,LL.M. & Ira Thania Rasjidi., MH.
$8.00