Built-In String Methods: Overview – Real Python

Manipulating Strings With String Methods – Real Python

Advanced String Methods in Python Part 1 (Video 38)

Python String to Int() and Int to String Tutorial: Type Conversion in Python

Python String Concatenation - GeeksforGeeks

Python int() function - w3resource

Guide to String Formatting in Python Using F-strings | Built In

Python F-string Formatting

Guide To String Formatting In Python | Simplilearn