https://m.youtube.com/watch?v=WIKOFLRQuc8
That's not advanced undergrad certainly :) .. but I found the following great to learn from. Especially the treatment of momentum and the stress energy tensor really worked for me -
https://www.amazon.com/First-Course-General-Relativity/dp/0521277035
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https://m.youtube.com/watch?v=WIKOFLRQuc8
That's not advanced undergrad certainly :) .. but I found the following great to learn from. Especially the treatment of momentum and the stress energy tensor really worked for me -