by Prof. Dr. H. Harsuki, M.A $12.00
by Iwan Kurniawan $6.00
by LIPI $7.00
by Atmajaya $6.00
by Lester R. Brown $21.00
by J. M. Coetze $21.00
by Budhy Munawar Rachman $13.00
by Retno Iswarin Pujaningsih $0.00
by $7.00
by Mgr. P. Van Diepen, OSA. $6.00
by Jan Takasihaeng $7.00
by Khairul Basar $11.00