G.C.E. A/L Economics Answers with Explanations. Astan Publication.
Chicago Style (17th ed.) CitationG.C.E. A/L Economics Answers with Explanations. Colombo: Astan Publication.
MLA (9th ed.) CitationG.C.E. A/L Economics Answers with Explanations. Astan Publication.
Warning: These citations may not always be 100% accurate.