Analysis of information sources in references of the Wikipedia article "வணிக நெறிமுறைகள்" in Tamil language version.
{{cite web}}: Text "H.E.R.O." ignored (help){{cite web}}: Cite has empty unknown parameter: |4= (help){{cite web}}: Text "H.E.R.O." ignored (help){{cite web}}: Cite has empty unknown parameter: |4= (help)