APA (7th ed.) Citation

Premasiri. (2011). A/L Business Studies. Samudra Book Publications.

Chicago Style (17th ed.) Citation

Premasiri. A/L Business Studies. Srilanka: Samudra Book Publications, 2011.

MLA (9th ed.) Citation

Premasiri. A/L Business Studies. Samudra Book Publications, 2011.

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