Yitong Jiao, and Wenjing Zhang. “valuating the ffectiveness of eservations in the CLT: ocused nalysis of rticles 19 to 21”. tudies in ocial cience ∓ umanities, vol. 3, no. 2, Feb. 2024, pp. 50-53, https://www.paradigmpress.org/SSSH/article/view/1030.