How to find the ‘m’ oldest forks of a repository using GitHub api

I need to obtain the ‘m’ oldest forks of a given repository, using the GitHub API. To get the ‘m’ oldest forks I’m trying to obtain the forks sorted from oldest to newest.

Taking the example of “it-cert-automation-practice” repository of google, I’ve tried the following APIs:

https://api.github.com/repos/google/it-cert-automation-practice/forks?q=sort:created_at
https://api.github.com/repos/google/it-cert-automation-practice/forks?q=sort:oldest
https://api.github.com/repos/google/it-cert-automation-practice/forks?q=sort:updated_at&fork:true&order:asc
https://api.github.com/repos/google/it-cert-automation-practice/forks?q=sort:created_at&fork:true&order:asc