Is it okay to put a comma after a quotation mark if the title inside the quotation mark ends with a question mark?

Update: According to Cohen, the writer of “Why Not Socialism?”, socialism has the moral high ground over capitalism, but it can also be just as practical as well given the different types of socialism (his main focus is on market socialism but there are other forms such as syndicalism and mutualism). It looks incorrect... show more According to Cohen, the writer of “Why Not Socialism?”, socialism has the moral high ground over capitalism, but it can also be just as practical as well given the different types of socialism (his main focus is on market socialism but there are other forms such as syndicalism and mutualism).

It looks incorrect having a comma right after a question mark from inside quotation marks.
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