Merck, R. T. (2000). Corporate philanthropy: Taking up from Christian tradition of giving. Philippine Star.
Lua i Stíl Chicago (17ú heag.)Merck, Ronni Tapia. "Corporate Philanthropy: Taking Up from Christian Tradition of Giving." Philippine Star 2000.
Lua MLA (9ú heag.)Merck, Ronni Tapia. "Corporate Philanthropy: Taking Up from Christian Tradition of Giving." Philippine Star, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.