Yen, Hsu-ChunHsu-ChunYenIbarra, Oscar H.Oscar H.IbarraHSU-CHUN YEN2020-06-162020-06-162013https://scholars.lib.ntu.edu.tw/handle/123456789/502482[SDGs]SDG4journal article10.1142/S0129054113020048https://doi.org/10.1142/S0129054113020048