Referências

Alguns dos tutoriais pesquisados via Google, estudados, testados e adaptados para este proejto

https://www.laravelcode.com/post/laravel-7-user-roles-and-permissions-tutorial-without-packages

https://www.codechief.org/article/user-roles-and-permissions-tutorial-in-laravel-without-packages

https://github.com/techmahedy/user-roles-and-permission-access

http://www.rscoder.com/2020/05/laravel-7x-user-roles-and-permissions.html

https://medium.com/@16shuklarahul/laravel-7-x-9ed4d41d327c

https://itsolutionstuff.com/post/laravel-58-user-roles-and-permissions-tutorialexample.html

https://github.com/usamamuneerchaudhary/roles-permissions

https://github.com/artesaos/defender

https://medium.com/swlh/laravel-authorization-and-roles-permission-management-6d8f2043ea20

https://thewebtier.com/laravel/understanding-roles-permissions-laravel/

Também recebi muitas informações úteis de

grupo Laravel Brasil do Facebook - https://www.facebook.com/groups/laravelbrasil

https://stackoverflow.com/

https://laracasts.com/discuss/channels/laravel/

E de outras generosas fontes