Update free-programming-books-bn.md (#11795)

* Update free-programming-books-bn.md

* Update books/free-programming-books-bn.md

Co-authored-by: Eric Hellman <[email protected]>

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Co-authored-by: Eric Hellman <[email protected]>

Author: Ajay-singh1

Diff for: books/free-programming-books-bn.md

@@ -23,6 +23,7 @@
 
 * [বাংলায় C প্রোগ্রামিং ল্যাঙ্গুয়েজ শেখার কোর্স](https://c.howtocode.dev) - Jakir Hossain, et al.
 * [Computer Programming «কম্পিউটার প্রোগ্রামিং ১ম খণ্ড»](http://cpbook.subeen.com) - Tamim Shahriar Subeen (HTML)
+* [Computer Programming Part 3](https://archive.org/details/computer-programming-part-3-tamim-shaharier-subin) - Tamim Shahriar Subeen (PDF)
 
 
 ### <a id="cpp"></a>C++