Xiao, Yang, Guoli Yang, and Xijun Zhang. “A New Learning Resource Retrieval Method Based on Multi-Knowledge Association Mining”. International Journal of Emerging Technologies in Learning (iJET) 18, no. 04 (February 23, 2023): pp. 104–119. Accessed November 22, 2024. https://online-journals.org/index.php/i-jet/article/view/38243.