PLIRDPRING, PHAKHARACH, and PRADIT SONGSANGYOS. “RECOMMENDATION SYSTEM FOR PERSONALIZED LESSON LEARNING”. TPM – Testing, Psychometrics, Methodology in Applied Psychology, vol. 32, no. 2 - June, June 2025, pp. 753-60, https://tpmap.org/submission/index.php/tpm/article/view/1547.