^
Karackattu, Joe Thomas. The Corrosive Compromise of the Sino-Indian Border Management Framework: From Doklam to Galwan. Asian Affairs. 2020, 51 (3): 590–604. S2CID 222093756. doi:10.1080/03068374.2020.1804726.
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Hudson, Geoffrey Francis. Far Eastern Affairs, Volume 3. St. Martin's Press. 1963: 20.
^Hoffmann, India and the China Crisis (1990), p. 77: "This company was commanded by the most experienced Indian patrol leader in Ladakh, one Karam Singh, who (the previous June) had taken a patrol through Hot Spring, Kongka Pass, and then forty miles further to Lanak La. No sign of a Chinese presence had been seen then..."
^Fisher, Rose & Huttenback, Himalayan Battleground (1963), p. 101: "Confusion as to the extent of the Chang Chenmo valley between the Lanak and Kongka passes continued to be a feature of Chinese cartography even after the Communists came to power.... the flexibility shown by official Chinese cartographers here and on other sections of the border makes mockery of China's oft-repeated claim that its concept of the border has a solid basis in history."
^Van Eekelen, Willem Frederik, Indian Foreign Policy and the Border Dispute with China, Springer: 164, 1967 [2022-03-22], ISBN 978-94-017-6555-8, (原始内容存档于2022-05-04), The Chinese could not quote a single document confirming that the Kongka Pass constituted the boundary.... The thorough approach of the Indian side generally contrasted with an inconsistent and almost careless presentation by the Chinese officials.