Tupas, F. (2000). People Power needed to stop quarrying at the Marikina Shed. Philippine Daily Inquirer.
Chicago-referens (17:e uppl.)Tupas, Francisco. "People Power Needed to Stop Quarrying at the Marikina Shed." Philippine Daily Inquirer 2000.
MLA-referens (9:e uppl.)Tupas, Francisco. "People Power Needed to Stop Quarrying at the Marikina Shed." Philippine Daily Inquirer, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.