https://oatd.org/oatd/search?q=%28badminton%29%20AND%20language%3A%28en%20OR%20eng%20OR%20english%29%20AND%20cc_s%3A%28us%20OR%20ca%29%20AND%20pub_dt%3A%5B1978-01-01T00%3A00%3A00Z%20TO%201980-01-01T00%3A00%3A00Z%5D
https://etd.ohiolink.edu/pg_10?0::NO:10:P10_ACCESSION_NUM:osu1487072494850639#abstract-files