Analysis of information sources in references of the Wikipedia article "பாறை எண்ணெய் சுத்திகரிப்பு ஆலை" in Tamil language version.
{{cite book}}: More than one of |ISBN= and |isbn= specified (help); More than one of |author1= and |last= specified (help); More than one of |author2= and |last2= specified (help); Unknown parameter |lastauthoramp= ignored (help){{cite book}}: More than one of |ISBN= and |isbn= specified (help); More than one of |author= and |last= specified (help){{citation}}: |edition= has extra text (help); |last= has numeric name (help)CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link){{citation}}: |edition= has extra text (help); |last= has numeric name (help)CS1 maint: extra punctuation (link) CS1 maint: multiple names: authors list (link)