Organisation for Economic Co-operation and Development. (2021). OECD Skills Studies The Assessment Frameworks for Cycle 2 of the Programme for the International Assessment of Adult Competencies (First edition.). OECD Publishing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Organisation for Economic Co-operation and Development. OECD Skills Studies The Assessment Frameworks for Cycle 2 of the Programme for the International Assessment of Adult Competencies. First edition. Paris, France: OECD Publishing, 2021.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Organisation for Economic Co-operation and Development. OECD Skills Studies The Assessment Frameworks for Cycle 2 of the Programme for the International Assessment of Adult Competencies. First edition. OECD Publishing, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.