by Prof. Dr. Ir. Tri Yuwanta S.U., DEA $7.00
by Don W.S., Threes Emir, dan Cherry H $13.00
by Mastenbroek, W.F.G. $7.00
by Ir. Suprio Guntoro $6.00
by Bambang Agus Murtidjo $6.00
by Fairhurst, Michael C $6.00