Addressing Mormonism has never been an apologetical interest of mine. Nevertheless, they are a major Cult that needs to be addressed. Here are some useful resources that help refute Mormonism.
Leaving Mormonism: Why Scholars Changed Their Minds (Dr. Lynn Wilder and Dr. Corey Miller)
Introduction to Mormon Errors by James White
The Witnessing to Mormons Seminar (1994) by James White
https://youtu.be/aqPVuHzZ1gc
Letters To A Mormon Elder by James White
http://www.novus2.com/alphamin/LETTERS/MAINPAGE.htm
or
https://web.archive.org/web/20010205080800/http://www.alphamin.org/LETTERS/mainpage.htm
Old articles on Mormonism by James White
http://vintage.aomin.org/Mormonism.html
https://youtu.be/aqPVuHzZ1gc
Letters To A Mormon Elder by James White
http://www.novus2.com/alphamin/LETTERS/MAINPAGE.htm
or
https://web.archive.org/web/20010205080800/http://www.alphamin.org/LETTERS/mainpage.htm
Old articles on Mormonism by James White
http://vintage.aomin.org/Mormonism.html