by Gustian Djuanda & Irwansyah Lubis $11.00
by Kunarjo $11.00
by Drs. Agus M. Hardjana, M.Sc., Ed $6.00
by Masduki $6.00
by Fatmawati, S.H., M.H $9.00
by Cik Hasan Bisri $6.00