Principle-centered leadership /

समान संसाधन

• The power of positive doing /
  द्वारा: Burnell, Ivan
• Spell success in your life : a road map for achieving your goals and surviving success /
  द्वारा: Colwell, Peter G.
  प्रकाशित: (2002)
• The 7 habits of highly effective teens : the ultimate teenage success guide /
  द्वारा: Covey, Sean
  प्रकाशित: (1998)
• The 7 habits of highly effective people : restoring the character ethic /
  द्वारा: Covey, Stephen R.
• The seven habits of highly effective people : restoring the character ethic /
  द्वारा: Covey, Stephen R.
  प्रकाशित: (1989)