Zachariah, K. C. & Rajan, S. Irudaya (2011), Kerala Migration Survey 2011Archived 2020-01-10 at the Wayback Machine (PDF), Department of Non-resident Keralite Affairs, Government of Kerala, p. 29. This is the number of emigrants from Kerala, which is closely related to but different from the actual number of Malayalis.
"Kerala Migration Survey - 2014". The Indian Express.( This is the number of approximate emigrants from Kerala, which is closely related to, but different from the actual number of Malayalis.). No. 17 September 2014. Retrieved 21 October 2014.
Zachariah, K. C. & Rajan, S. Irudaya (2011), Kerala Migration Survey 2011Archived 2020-01-10 at the Wayback Machine (PDF), Department of Non-resident Keralite Affairs, Government of Kerala, p. 29. This is the number of emigrants from Kerala, which is closely related to but different from the actual number of Malayalis.