Konservasi energi

Konservasi energi dapat mengacu pada beberapa hal berikut:

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Message: Trying to get property of non-object

Filename: wikipedia/wikipediareadmore.php

Line Number: 5

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Severity: Notice

Message: Trying to get property of non-object

Filename: wikipedia/wikipediareadmore.php

Line Number: 70

 

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Severity: Notice

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Filename: controllers/ensiklopedia.php

Line Number: 41