Jindal, Akash (Nov-Dec 2018). “The Story of Hot Springs”. Indian Police Journal (Special Issue on Police Martyrdom): 20–33. ISSN0537-2429. http://bprd.nic.in/WriteReadData/CMS/Spl.%20issue%20of%20IPJ.pdf4 January 2020閲覧. "(p22) Karam Singh of ITBF was assigned the task of establishing outposts near the Chinese Occupation Line ... “Hot Springs” was barely three Km far from the site where Chinese Army had intruded."
claudearpi.net
“Notes, Memoranda and letters Exchanged and Agreements signed between The Governments of India and China”. White Paper III. Ministry of External Affairs, Government of India (November 1959 – March 1960). 4 January 2020閲覧。 “[Chinese interrogation of Karam Singh] We established a checkpost at Kayam and we had to establish one at Shamul Lungpa. On 20th October, 1959, our two men missed. On the morning of 21st October 1959 Tyagi took 60 men and reached the hill (battle field). ... [Indian debriefing of Karam Singh] we had inadequate cover and the Chinese were in a favourable position ... five of us were made to carry the dead body of a Chinese soldier who had been killed.”
Karackattu, Joe Thomas (2020). “The Corrosive Compromise of the Sino-Indian Border Management Framework: From Doklam to Galwan”. Asian Affairs51 (3): 590–604. doi:10.1080/03068374.2020.1804726.
eki.ee
“Ngari prefecture”. Geographical names of Tibet AR (China). Institute of the Estonian Language (2018年6月3日). 9 January 2020閲覧。
Jindal, Akash (Nov-Dec 2018). “The Story of Hot Springs”. Indian Police Journal (Special Issue on Police Martyrdom): 20–33. ISSN0537-2429. http://bprd.nic.in/WriteReadData/CMS/Spl.%20issue%20of%20IPJ.pdf4 January 2020閲覧. "(p22) Karam Singh of ITBF was assigned the task of establishing outposts near the Chinese Occupation Line ... “Hot Springs” was barely three Km far from the site where Chinese Army had intruded."