APA (7th ed.) Citation

publication, S. w. (2019). (O/L) Mathematics. S.D wijethunga.

Chicago Style (17th ed.) Citation

publication, S.D wijethunga. (O/L) Mathematics. kadawatha: S.D wijethunga, 2019.

MLA (9th ed.) Citation

publication, S.D wijethunga. (O/L) Mathematics. S.D wijethunga, 2019.