Johnson, Spencer.

The one minute manager / by: Johnson, Spencer.; Blanchard, Kenneth H. (書目-語言資料,印刷品)

"Yes" or "no" : = the guide to better decisions / by: Johnson, Spencer. (書目-語言資料,印刷品)

The one minute teacher : = how to teach others to teach themselves / by: Johnson, Spencer.; Johnson, Constance. (書目-語言資料,印刷品)