Parida, P. C., Maathiyazhagan, K., & Nancharaiah, G. (2001). Purchasing power parity and its validity in the South Asian countries. Institute for Social and Economic Change.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Parida, Purna Chandra, K. Maathiyazhagan, و Gummadi Nancharaiah. Purchasing Power Parity and Its Validity in the South Asian Countries. Bangalore: Institute for Social and Economic Change, 2001.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Parida, Purna Chandra, et al. Purchasing Power Parity and Its Validity in the South Asian Countries. Institute for Social and Economic Change, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.