Udani, Z. A. S. (1995). Investing in people: Reflection on values and virtue-friendly enterprises. Institute for Ethics and Excellence in Enterprises, University of Asia and the Pacific.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Udani, Zenon A. S. Investing in People: Reflection on Values and Virtue-friendly Enterprises. Pasig City: Institute for Ethics and Excellence in Enterprises, University of Asia and the Pacific, 1995.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Udani, Zenon A. S. Investing in People: Reflection on Values and Virtue-friendly Enterprises. Institute for Ethics and Excellence in Enterprises, University of Asia and the Pacific, 1995.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.