by FMIPA Universitas Indonesia $6.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $6.00
by Djoko Prakoso, S.H $7.00
by Victor Situmorang, S.H $7.00
by Soedjito Tjokrowisastro $12.00
by Drs. J. Riwu Kaho $9.00