by Jack Trout dan Steven Rivkin
$6.00

by Dr. Moh. Efendi, M.Pd., M.Kes
$7.00

by Drs. Amin Widjaja Tunggal, Ak., M.B.A
$11.00

by Reynold a. Nicholson
$7.00

by Hendri F. Isnaeni
$4.32

by Sri Sultan Hamengkubuwono X
$16.00