@misc{ enwiki:1226263750, author = "{Wikipedia contributors}", title = "Nghĩa Hưng district --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", url = "https://en.wikipedia.org/w/index.php?title=Ngh%C4%A9a_H%C6%B0ng_district&oldid=1226263750", note = "[Online; accessed 25-July-2024]" }
url
(\usepackage{url}
somewhere in the preamble), which tends to give much more nicely formatted web addresses, the following may be preferred:
@misc{ enwiki:1226263750, author = "{Wikipedia contributors}", title = "Nghĩa Hưng district --- {Wikipedia}{,} The Free Encyclopedia", year = "2024", howpublished = "\url{https://en.wikipedia.org/w/index.php?title=Ngh%C4%A9a_H%C6%B0ng_district&oldid=1226263750}", note = "[Online; accessed 25-July-2024]" }