by A.H. Polard, dkk $11.00
by Yayuk Sri Perwani, S.E $6.00
by - $9.00
by Lembaga Demografi Fakultas Ekonomi UI $6.53
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $11.00
by Hiro Tugiman $6.00