by Dr. Ir. Adji Sastrosupadi, MS $11.00
by Subiyakto Sudarmo $6.00
by Hasbullah $11.00
by Gunawan Widjaja, A. Yani $9.00
by H. Bohari, SH, MS $7.00
by Abdul Mujib, Jusuf Mudzakir $9.00