APA (7th ed.) Citation

gunawardena, K. Past Quetions and Model answers;1990-1999. The book world.

Chicago Style (17th ed.) Citation

gunawardena, K.L.A. Past Quetions and Model Answers;1990-1999. Dehiwala: The book world.

MLA (9th ed.) Citation

gunawardena, K.L.A. Past Quetions and Model Answers;1990-1999. The book world.

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