Das, S., & Krishnan, S. R. (1933). Teachings of Isa Upanisad: In the light of modern thought and literature. Panjab Circulating Library & Book Depot.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDas, Sain, और S. Radha Krishnan. Teachings of Isa Upanisad: In the Light of Modern Thought and Literature. Panjab Circulating Library & Book Depot, 1933.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDas, Sain, और S. Radha Krishnan. Teachings of Isa Upanisad: In the Light of Modern Thought and Literature. Panjab Circulating Library & Book Depot, 1933.
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