https://devhmo.hocmai.net/bai-giang-truc-tuyen/96923/buoi-1-bien-phap-tu-tu-vao-hoc-9h00-11h00-ngay-158.html 2020-08-13 weekly https://devhmo.hocmai.net/bai-giang-truc-tuyen/96924/buoi-2-van-hoc-dan-gian-vao-hoc-19h30-21h30-ngay-188.html 2020-08-13 weekly https://devhmo.hocmai.net/bai-giang-truc-tuyen/96925/buoi-3-van-hoc-hien-dai-vao-hoc-19h30-21h30-ngay-208.html 2020-08-13 weekly https://devhmo.hocmai.net/bai-giang-truc-tuyen/96926/buoi-4-tap-lam-van-vao-hoc-9h00-11h00-ngay-238.html 2020-08-13 weekly