October 2021
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10.19160/e-ijer.970558
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10.19160/e-ijer.867845
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10.19160/e-ijer.902895
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10.19160/e-ijer.924649
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10.19160/e-ijer.928384
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10.19160/e-ijer.890665
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10.19160/e-ijer.978454
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10.19160/e-ijer.909513
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