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What Is an Economic Sector and How Do the 4 Main Types Work? - Investopedia
The 5 Sectors of the Economy - ThoughtCo
Economic sector - Wikipedia
Sectors of the economy - Economics Help
Economic Sectors Explained: The 4 Sectors of the Economy
What is an Economic Sector? - Market Business News
Industry | Definition, Sectors, & Facts | Britannica Money
The Sectors of the Economy - Quickonomics
Economic Sectors | Overview & Examples - Lesson - Study.com
Economy: What It Is, Types of Economies, Economic Indicators