V.S.Subramaniam. (2018). Mathematics Grade 9. Lanka Book Deport pub.
Chicago Style (17th ed.) CitationV.S.Subramaniam. Mathematics Grade 9. Colombo: Lanka Book Deport pub, 2018.
MLA (9th ed.) CitationV.S.Subramaniam. Mathematics Grade 9. Lanka Book Deport pub, 2018.
Warning: These citations may not always be 100% accurate.