by Maria Farida Indrati S. $11.00
by Iskandar Kanna, A.Md $6.00
by Don W.S., Threes Emir, dan Cherry H $13.00
by Ir. Heinz Frick & FX. Bambang Suskiyatno $6.00
by Ir. Pracaya $6.00
by Bambang Agus Murtidjo $6.00