by Tuti Soenardi $9.00
by Yuyun Alamsyah $11.00
by Indriani $6.00
by Ratih Sanggarwati $11.00
by Ir. Indro Purwono $6.00
by Ir. Sudadi Martodireso & Ir. Widada Agus Suryanto, MM $5.00
by Ir. Abbas Siregar Djarijah $6.00
by WK $16.00
by Dr. Harun Hadiwijono $6.00