APA (7th ed.) Citation

Gunasekara, I. H. (2009). Mathematics: M. D. Gunasena G. C. E. (O/L) model papers and past papers. Gunasena.

Chicago Style (17th ed.) Citation

Gunasekara, Inoma Hemashikha. Mathematics: M. D. Gunasena G. C. E. (O/L) Model Papers and Past Papers. Colombo: Gunasena, 2009.

MLA (9th ed.) Citation

Gunasekara, Inoma Hemashikha. Mathematics: M. D. Gunasena G. C. E. (O/L) Model Papers and Past Papers. Gunasena, 2009.