http://www.auditorgeneral.gov.lk/web/images/special_report/10th_installment/Final%20Report%20Railways.pdf
http://parliament.lk/uploads/documents/paperspresented/performance-report-department-of-srilanka-railway-2014-si.pdf
https://www.ntc.gov.lk/corporate/pdf/NTC%20Sinhala%20Report%20-%202016.pdf
http://www.mnpea.gov.lk/web/images/pipsin/Chapter05.pdf
https://www.csrp.lk/images/pdf/History_of_Sri_Lanka_Railways__in_Sinhala.pdf