Singh, . G. (1983). A Geography of India (4th ed.). Atma Ram.
Tohutoru Kātū Chicago (17th ed.)Singh, Gopal. A Geography of India. 4th ed. Delhi: Atma Ram, 1983.
Tohutoro MLA (9th ed.)Singh, Gopal. A Geography of India. 4th ed. Atma Ram, 1983.
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