by - $12.00
by Dra. H. Azimar Enong $6.00
by Mohamad Muslich, S.E., M.B.A $7.00
by Drs. H. Burhanuddin Salam, M.M $11.00
by Lembaga Demografi Fakultas Ekonomi UI $6.53
by Hudoro Sameto, MBA $6.00