Xu JL, Liu XJ, Wang HX, Zhang JQ, Liu YY, Zhang T. The Practice and the Reflection of Network-Assistance Teaching based on the Platform of Blackboard. Int. J. Emerg. Technol. Learn. [Internet]. 2014 May 26 [cited 2024 Nov. 22];9(8):pp. 42-44. Available from: https://online-journals.org/index.php/i-jet/article/view/3635