[Help] How to get subscribers list from a specific community?

Hi all,
I'm doing dissertation about Steemit community research, now need to get "STEEM CN/中文" community subscribers list, the problem is i don't know how to get it.
I checked https://developers.steem.io/ , https://github.com/steemit/steem-js/tree/master, and https://www.npmjs.com/package/steem, there is no API that can directly captures the subscribers of a specific community.
I looked up the Bridge API, use method "bridge.list_community_roles" which can list community roles and labels for each account in the community. But the results only show about 1,000 subscribers of the community, which actually has more than 6,000 subscribers right now.
I looked up the Accounts API, use method "Lookup Accounts", but GPT told me that the subscribers info belongs to community object , not account object .
I also check the community webpage https://steemit.com/trending/hive-180932, click on the top right corner "subscribers", it will show "Latest STEEM CN/中文 Subscribers", but the amount is only 250, it's not a complete list of subscribers.
So, is there any way to get a complete list of subscribers?
Thank you!