by Sakti A. Siregar $6.00
by Ir. Yudo Sudarto SP $5.00
by H. Rahmat Rukmana $5.00
by Ir. Heinz Frick $6.00
by Ir. M. Lies Suprapti $6.00
by Bole Malo, Agustinus $5.00
by Muhammad Noor $9.00
by Noer Iskandar Al Barsany $5.00
by A. Rahman I Doi $6.00
by Edi Rohaedi sh., mh & Himawan Estu Bagijo, Sh., MH $16.00
by Marsana Windhu $3.00
by - $5.00