Jianfeng Ou. “esearch on the rofessional evelopment upport ystem of ouble-ualified eachers in igher ocational olleges in the ew Era—Taking igher ocational olleges in unan rovince s amples”. esearch and dvances in ducation, vol. 2, no. 3, Apr. 2023, pp. 28-33, https://www.paradigmpress.org/rae/article/view/533.