Token economy en Text text/html http://wik.ed.uiuc.edu/index.php/Token_economy 2009-05-12 Jackie WikEd user Amclow Marcy Flessner Erin Kilroy Patrick Johnson Phil wilkey Steven Yunker Michael Cornell Tom Anderson Jamie Brewczynski Kristy Kleckauskas Laura Gowler Holly Eichelberger Tim Hatcher Gregory Hall Paul Graham Hyung Ro Cathy Watson Jackie Baxter Nichole Jessup Linda Patterson WikEd user Marybajt WikEd user Hsavoca Anonymous user(s) of WikEd WikEd user Kristin Anonymous user(s) of WikEd Ralph