REFERENCES:

 BOOKS:

1. Montemayor, Felix (1985).  Ethics: The Science and Art of Life, 3rd ed., Manila: National Book Store, Inc.
2. Reyes, Ramon C. (1989).  Ground and Norm of Morality: Ethics for College Students.  Manila: Ateneo de Manila University. 
3. Timbreza, Florentino T. (1993).  Bioethics and Moral Decisions.  Malate, Manila: De la  Salle University Press, Inc.
4. Quito, Emerita S. (2008).  Fundamentals of Ethics.  Quezon City: C & E Publishing, Inc.
5. Ariola, Mariano, ED.D. (2018).  Ethics.  Manila: Library Services & Publishing Inc.
6. Pasco, Marc Oliver; Suarez, Fullente & Rodriguez, Agustin Martin (2018).  Ethics. Quezon City: C & E Publishing, Inc.
7. Bulaong, Oscar, Jr.; Calano, Mark Joseph T.; Lagliva, Albert M.; Mariano, Michael Ner E.; & Principe, Jesus Deogracia Z. (2018). Ethics: Foundations of Moral Valuation.  Quezon City: Rex Book Store, Inc.

ONLINE SOURCE:

1. Catechism of the Catholic Church, Article 7: The Virtues, accessed: http://www.vatican.va/archive/ccc_css/archive/catechism/p3s1c1a7.htm