Group Theory and Ring Theory: https://www.overleaf.com/read/tfdcfhrgcwvr#450f96
Module Theory and Field Theory: https://www.overleaf.com/read/zzvktynmxzfc#ae7c29
Commutative Algebra: https://www.overleaf.com/read/bmnqmjhwcyqt#212c61
Notes and Exercise on Hartshorne: https://www.overleaf.com/read/yszjrhwprftv#75df6c