by - $18.00
by Mahyudin Al Mudra & Tuti Sumarningsih $6.00
by Chris Charmichael $7.00
by Prof. Dr. Veithzal Rivai $12.00
by Edward G. Reed & Edward K. Gill $16.00
by Drs. Amin Widjaja Tunggal, Ak., M.B.A $12.00