Does anyone may indicate good Undergrad (Principles) Macroeconomics online and free courses?

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Malachi Albert Ti̇zhe

I can offer help in respect of macroeconomics of livestock production as a course. Also I have written a book on microeconomics of livestock production. If you are interested pls book fo some copies.

Ertimi Basem

https://ocw.mit.edu/courses/economics/14-02-principles-of-macroeconomics-fall-2004/lecture-notes/

Marcus Bansah

Check out openstax: https://openstax.org/details/books/principles-macroeconomics-2e