National Institute of Educational Planning and Administration (India). Documentation & Sub-National Systems Unit. Documentation at sub-national levels. Documentation & Sub-National Systems Unit, National Institute of Educational Planning and Administration.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Institute of Educational Planning and Administration (India). Documentation & Sub-National Systems Unit. Documentation at Sub-national Levels. New Delhi: Documentation & Sub-National Systems Unit, National Institute of Educational Planning and Administration.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Institute of Educational Planning and Administration (India). Documentation & Sub-National Systems Unit. Documentation at Sub-national Levels. Documentation & Sub-National Systems Unit, National Institute of Educational Planning and Administration.