by Syam Hardy $7.00
by Drs. Amin Wijaja Tunggal, M.B.A $7.00
by S.R. Parker, dkk $9.00
by $6.00
by F. Suryatmo $9.00
by Drs. Djalinus Syah, Dra. Syamsahrul,Dra. Azimar Enong $7.00
by APPMI $9.00