by Drs. Djoko Widagdho, dkk $9.00
by Eric A. Nordlinger $11.00
by Drs. Djoko Hargono., dkk $9.00
by Allan B. Muntjoy $9.00
by Prof. Dr. Soegyarto Mangkuatmodjo $13.00
by Frianto Pandja, S.E $11.00