by Moh. Daud Ali $11.00
by Don W.S., Threes Emir, dan Cherry H $28.00
by Ir. Daisy P. Sriyadi Hendaryono, M.Si & Ir. Ari Wijayani $6.00
by RW. Allard $11.00
by JH. Rapar $11.00
by Gunawan Widjaja $7.00