Question

name four material sources​

Answer 1

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The main sources are:

• Producers and distributors.
• Bibliographic sources.
• Local information sources.
• The Internet.

Answer 2

Answer:

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Explanation:

Important material source :

•• Producers and distributors.

•• Bibliographic sources.

•• Local information sources.

•• The Internet.

Hope it helps you ✌