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If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Jika pesan ini muncul, berarti kami mengalami masalah saat memuat sumber luar di situs web kami. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.