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^Gopalan, Kausallya (1932). Kausallya Gopalan (1932) Biography written by Vagbhatananda guru. published by Mathrubhumi Press, Calicut in 1932.
^Ritzer, George (2014). Place and Caste Identification: Distanciation and Spatial Imaginaries on a Caste-Based Social Network. University of Maryland (College Park, Md.). OCLC890402212.
^Bose, Ram Chandra. (1884). Brahmoism; or, History of reformed Hinduism from its origin in 1830,. Funk & Wagnalls. OCLC1032604831.
^Summers, William J. (2001). "Roy [Le Roy, Le Roi, Roi, Lo Roi, Lo Roy], Bartolomeo". Oxford Music Online. Oxford University Press. doi:10.1093/gmo/9781561592630.article.23993.
^Rammohun Roy, Raja, 1772?-1833. (1996). Sati : a writeup of Raja Ram Mohan Roy about burning of widows alive. B.R. Pub. Corp. ISBN81-7018-898-9. OCLC827940245.{{cite book}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
^Padmanabha Menon, K. P. (Krishnat P.), 1857–1919. (2001). History of Kerala : a history of Kerala written in the form of notes on Visscher's letters from Malabar. Asian Educational Services. ISBN81-206-0164-5. OCLC911738996.{{cite book}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)