| Authors | Positive perception | Negative Perception | Positive & Negative Perceptions | Neutral Perception | Not mention |
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| 1 |
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| 1 |
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| 1 |
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| 1 |
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| 1 |
| | 1 |
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| | 1 |
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| 1 |
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| 1 |
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| | 1 |
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| 1 |
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| | 1 |
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| | 1 |
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| | 1 |
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| 1 |
| | 1 |
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| 1 |
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| | 1 |
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| 1 |
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| | 1 |
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| | 1 |
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| 1 |
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| 1 |
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| | 1 |
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| 1 |
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| 1 |
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| | 1 |
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| 1 |
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| | 1 |
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| 1 |
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| 1 |
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| | 1 |
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| 1 |
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| 1 |
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| 1 |
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