Sadagopan, V. V., & Srirama Bharati. (1983). Spirals and circles: An organismic approach to music and music education : collected from the notes and lectures of professor V.V. Sadagopan. Tyaga Bharati Music Education Mission.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sadagopan, V. V., و Srirama Bharati. Spirals and Circles: An Organismic Approach to Music and Music Education : Collected from the Notes and Lectures of Professor V.V. Sadagopan. Melkote: Tyaga Bharati Music Education Mission, 1983.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sadagopan, V. V., و Srirama Bharati. Spirals and Circles: An Organismic Approach to Music and Music Education : Collected from the Notes and Lectures of Professor V.V. Sadagopan. Tyaga Bharati Music Education Mission, 1983.
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