It works fine with all of them. It's true that some letters are mirrored forms of other letters, but that doesn't leave any ambiguity - the form of the letter is oriented to the direction of reading, so "b" is a B when you're reading left-to-right and it's a D when you're reading right-to-left.
The whole page: https://web.mnstate.edu/houtsli/tesl551/Writing/page4.htm