APA-viite (7. p.)

PetroGreen Energy Corporations (PGEC). Biggest Philippine solar plant to-date starts power export to Luzon grid. IN Across the Nation. Philippine Daily Inquirer.

Chicago-viite (17. p.)

PetroGreen Energy Corporations (PGEC). "Biggest Philippine Solar Plant To-date Starts Power Export to Luzon Grid. IN Across the Nation." Philippine Daily Inquirer .

MLA-viite (9. p.)

PetroGreen Energy Corporations (PGEC). "Biggest Philippine Solar Plant To-date Starts Power Export to Luzon Grid. IN Across the Nation." Philippine Daily Inquirer, .