APA (7th ed.) Citation

Nirmala Perera. (2015). Mathematics Work Book Part 11. Jeya Book center.

Chicago Style (17th ed.) Citation

Nirmala Perera. Mathematics Work Book Part 11. Colombo: Jeya Book center, 2015.

MLA (9th ed.) Citation

Nirmala Perera. Mathematics Work Book Part 11. Jeya Book center, 2015.

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