by Ir. Joko Mulyanto $5.00
by Jaja Zakaria $7.00
by Ir. Daisy P. Sriyadi Hendaryono, M.Si & Ir. Ari Wijayani $6.00
by Bambang Agus Murtidjo $6.00
by Redjo Mudyahardjo $13.00
by Hutabarat, Sahala & Evans, Stewart M $6.00
by Yaniyullah $12.00
by $4.00
by Masaru Emoto $9.00
by Sun Tzu $5.00
by Andi Tahir Hamid, S. H. $7.00
by SITTI CHADIDJAH, DKK $11.00