و آر ایل:https://upload.wikimedia.org/wikipedia/commons/thumb/4/4d/Reinvestment---the-Cause-of-the-Yips-pone.0082470.s002.ogv/135px--Reinvestment---the-Cause-of-the-Yips-pone.0082470.s002.ogv.jpg
و آر ایل:https://commons.wikimedia.org/wiki/File:Reinvestment---the-Cause-of-the-Yips-pone.0082470.s002.ogv
