| 1. | In addition, a single source may contain both primary and secondary material.
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| 2. | As a tertiary source, Wikipedia can only summarize the published secondary material.
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| 3. | Extensive collections of both primary sources and secondary materials such as treatises are available.
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| 4. | More importantly, many high-quality sources contain both primary and secondary material.
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| 5. | As usual in Shirley's drama, this main plot is supported by secondary material.
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| 6. | Fair amount of secondary material here.
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| 7. | As a result, some critiques and reviews are a mix of primary and secondary material.
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| 8. | This may be achieved by designing processes more efficiently, increasing recycling and establishing markets for secondary materials.
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| 9. | And yet, this is seen as an acceptable citation for serious reference books, secondary materials and Wikipedia.
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| 10. | Another term sometimes seen in relation to this secondary material ( and other material produced similarly ) is activation products.
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मोबाइल