Philippines. Department of Energy. (2010). Directing the Preparations for the Trading of Ancillary Services in the Philippine Wholesale Electricity Spot Market ("WESM"). Philippine Daily Inquirer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Department of Energy. "Directing the Preparations for the Trading of Ancillary Services in the Philippine Wholesale Electricity Spot Market ("WESM")." Philippine Daily Inquirer 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Philippines. Department of Energy. "Directing the Preparations for the Trading of Ancillary Services in the Philippine Wholesale Electricity Spot Market ("WESM")." Philippine Daily Inquirer, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.