* https://global.oup.com/academic/product/civil-resistance-978...
* https://www.goodreads.com/book/show/44096650-civil-resistanc...
You also almost double your odds of success by not using violence. Further, less violent movements are more likely to end up more democratic / less authoritarian.
The/A thesis of the author is that people are turned off by the use of violence/force and are less likely to agree with, and/or get involved in, movements that use violence. So if a movement wants to grow the 'coalition' of people that will help and/or join them, that growth is best achieved by eschewing violence as much as possible.
* https://en.wikipedia.org/wiki/3.5%25_rule
The book is 'minorly academic', but it's an easy read and probably more geared toward the general public.
(The studies/book recognize that "violence" exists on a spectrum. The book also talks about generally non-violent movement(s) that have factions that attach to them that want to use violence, and various other scenarios.)