by Tim Busana GPU $6.00
by LIPI $7.00
by RUA Zainal Fanani $6.00
by AA Navis $11.00
by V.M. Bambang Soemantri $9.00
by Erna Hartanto, S.Kom $5.00
by Drs. K.H. Effendi Zarkasi $9.00