Assembly language, i Hope you are asking about Assembly language
You can find a lot of tutorials for ASM. One Famous Book is Peter Abels's IBM PC Assembly Language And Programming.
Here is one site help regarding the same.
http://www.xs4all.nl/~smit/asm01001.htm[
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The above are mostly reference to X86 (16-bit) real-mode assembly tutorials. You won't be able to use those in windows. Here's a tutorial on protected 32-bit mode:
http://siyobik.info/index.php?document=x86_32bit_asm[
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