The Optimism Advantage: 50 Simple Truths to Transform Your Attitudes and Actions into ResultseBookThe Optimism Advantage: 50 Simple Truths to Transform Your Attitudes and Actions into ResultskaryaTerry L. Paulson, Ph.D.Penilaian: 5 dari 5 bintang5/5Simpan The Optimism Advantage: 50 Simple Truths to Transform Your Attitudes and Actions into Results untuk nanti