Supervision: Concepts and Practices of Management

Minimalism: Live a Meaningful Life

Exponential Organizations: Why new organizations are ten times better, faster, and cheaper than yours (and what to do about it)

The Inevitable: Understanding the 12 Technological Forces That Will Shape Our Future

Leadership Communication

The Extraordinary Coach: How the Best Leaders Help Others Grow

Joyful: The Surprising Power of Ordinary Things to Create Extraordinary Happiness

Happy: Finding joy in every day and letting go of perfect

Calm: Working Through Life's Daily Stresses to Find a Peaceful Centre

Mencapai Makrifat - Al-Harits al-Muhasibi

Belajar Ikhlas: 91 Kiat Menemukan Nikmat Taat

Angel: How to Invest in Technology Startups — Timeless Advice from an Angel Investor Who Turned $100,000 into $100,000,000

The Art of the Start 2.0: The Time-Tested, Battle-Hardened Guide for Anyone Starting Anything

Fish!: A Proven Way to Boost Morale and Improve Results

Raving Fans: A Revolutionary Approach To Customer Service

Hardwiring Happiness: The New Brain Science of Contentment, Calm, and Confidence

Unbeatable Mind: Forge Resiliency and Mental Toughness to Succeed at an Elite Level

How Children Succeed: Grit, Curiosity, and the Hidden Power of Character

Publication Manual of the American Psychological Association

Psychology - David G. Myers & C. Nathan DeWall