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Portico
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Preserved
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2026-02-12
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Preserved : 2023: 4(1-2), 2024: 5(1-2), 2025: 6(1)
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Public Knowledge Project PLN
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Preserved
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2026-02-12
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Preserved : ; 1 (1); 2 (2); 4 (1, 2); 5 (1, 2); 6 (1)
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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 1 (1); 2 (, 1, 2); 3 (, 1, 2); 4 (, 1, 2); 5 (, 1, 2); 2019; 2020; 2021; 2022; 2023; 2024
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