Analysis of information sources in references of the Wikipedia article "படி நிலை சந்தைப்படுத்துதல்" in Tamil language version.
{{cite book}}
: Cite has empty unknown parameter: |coauthors=
(help){{cite book}}
: Cite has empty unknown parameter: |coauthors=
(help){{cite book}}
: |last1=
has generic name (help)