"Sukhumbhand woos commuters". The Nation. nationmultimedia.com. 16 January 2013. Archived from the original on 18 January 2013. Retrieved 26 June 2014.
"Sukhumbhand woos commuters". The Nation. nationmultimedia.com. 16 January 2013. Archived from the original on 18 January 2013. Retrieved 26 June 2014.