APA (7th ed.) Citation

KPK Premaratne. (2007). SECONDARY MATHEMATICS: GRADE 11. International Book House Pvt.Ltd.

Chicago Style (17th ed.) Citation

KPK Premaratne. SECONDARY MATHEMATICS: GRADE 11. Kurunegala: International Book House Pvt.Ltd, 2007.

MLA (9th ed.) Citation

KPK Premaratne. SECONDARY MATHEMATICS: GRADE 11. International Book House Pvt.Ltd, 2007.

Warning: These citations may not always be 100% accurate.