வரலாறு O/L 2008 & Model Papers. Astan Publication.
Chicago Style (17th ed.) Citationவரலாறு O/L 2008 & Model Papers. Colombo: Astan Publication.
MLA (9th ed.) Citationவரலாறு O/L 2008 & Model Papers. Astan Publication.
Warning: These citations may not always be 100% accurate.