by Ir. Heinz Frick & LMF. Purwanto $6.00
by Idries Shah $8.00
by American Asociation of State Highway and Transportation Officials $9.00
by Salvatore M. Sabato, P., OFM Conv $8.00
by Djoehana Setyamidjaja, M.Ed $7.00
by Rachman Sutanto $9.00