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<html lang="en-US">
<head>
<style>
#point:after{
content:"\0222D";
}
</style>
</head>
<body>
<p>Triple Integral using Hexa Decimal: ∭</p>
<p>Triple Integral using HTML Code: ∭</p>
<p>Triple Integral using HTML Entity: ∭</p>
<p id="point">Triple Integral using CSS Entity: </p>
</body>
</html>