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You don't own the copyright from anything that you've taken as "references from many sources." You'll need to check under what kind of copyright those sources are. You'll need copyright clearance...
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#4: Attribution notice removed
Source: https://writers.stackexchange.com/a/45202 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/45202 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
You don't own the copyright from anything that you've taken as "references from many sources." You'll need to check under what kind of copyright those sources are. You'll need copyright clearance and/or source attribution (eg, if those materials are under a Creative Commons licence).