Assam Bengal Railway (English Wikipedia)

Mukherjee, Hena (2012). "Assam Bengal Railway". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.
Mukherjee, Hena (2012). "Eastern Bengal Railway". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.
Islam, Sirajul (2012). "East Indian Railway". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.
Fida, Quazi Abul (2012). "Railway". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.

books.google.com (Global: 3^rd place; English: 3^rd place)

Report on the administration of North East India (1921-22). Mittal Publications. 1984. p. 46. Retrieved 16 December 2011.
S.N. Singh; Amarendra Narain; Purnendu Kumar (January 2006). Socio Economic and Political Problems of Tea Garden Workers: A Study of Assam. Mittal Publications, New Delhi. p. 105. ISBN 978-81-8324-098-7. Retrieved 16 December 2011.
World Survey of Foreign Railways. Transportation Division, Bureau of foreign and domestic commerce, Washington D.C. 1936. p. 211.
World Survey of Foreign Railways. Transportation Division, Bureau of foreign and domestic commerce, Washington D.C. 1936. pp. 210–219.

R.P. Saxena. "Indian Railway History timeline". Archived from the original on 29 February 2012. Retrieved 24 February 2012.

"Sealdah division-Engineering details". The Eastern Railway, Sealdah division. Archived from the original on 15 February 2012.

History Archived 15 November 2007 at the Wayback Machine, Bangladesh Railway, People's Republic of Bangladesh, Retrieved: 11 January 2007
"History". Bangladesh Railways. Archived from the original on 15 November 2007. Retrieved 24 February 2012.

"Chittagong – looking for a better future". New Age. Archived from the original on 26 September 2013. Retrieved 13 September 2013.

"History". Northeast Frontier Railway. Archived from the original on 2 May 2014. Retrieved 24 February 2012.

"Chittagong – looking for a better future". New Age. Archived from the original on 26 September 2013. Retrieved 13 September 2013.
R.P. Saxena. "Indian Railway History timeline". Archived from the original on 29 February 2012. Retrieved 24 February 2012.
History Archived 15 November 2007 at the Wayback Machine, Bangladesh Railway, People's Republic of Bangladesh, Retrieved: 11 January 2007
"History". Northeast Frontier Railway. Archived from the original on 2 May 2014. Retrieved 24 February 2012.
"History". Bangladesh Railways. Archived from the original on 15 November 2007. Retrieved 24 February 2012.
"Chapter 1 - Evolution of Indian Railways-Historical Background". Ministry of Railways, India website. Archived from the original on 1 June 2009.
"Sealdah division-Engineering details". The Eastern Railway, Sealdah division. Archived from the original on 15 February 2012.