The 7 habits of highly effective people powerful lessons in personal change by Stephen R. Covey

by Covey, Stephen R.
Published 2013

The 3rd alternative Stephen R. Covey; penterjemah, Norliza Abu Bakar; suntingan, Norhaslinda Abd. Razak

by Covey, Stephen R.
Published 2015

The wisdom and teachings of Stephen R. Covey

by Covey, Stephen R.
Published 2012

The 3rd alternative solving life's most difficult problems Stephen R. Covey with Breck England

by Covey, Stephen R.
Published 2011

The seven habits of highly effective people restoring the character ethic Stephen R. Covey

by Covey, Stephen R.
Published 1990