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DIakses pada 16 Desember 2020Bridges to Recovery. https://www.bridgestorecovery.com/blog/why-am-i-anxious-for-no-reason-recognizing-and-treating-an-anxiety-disorder/#:~:text=Anxiety%20can%20be%20caused%20by,anxiety%20or%20even%20panic%20attacks.
Diakses pada 16 Desember 2020