Calleja, N. P. (2012). K to 12 plan put to test: DepEd upbeat amid old problems. Philippine Daily Inquirer.
Citazione stile Chigago Style (17a edizione)Calleja, Niña P. "K to 12 Plan Put to Test: DepEd Upbeat Amid Old Problems." Philippine Daily Inquirer 2012.
Citatione MLA (9a ed.)Calleja, Niña P. "K to 12 Plan Put to Test: DepEd Upbeat Amid Old Problems." Philippine Daily Inquirer, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.