Hartanto, Hartanto, et al. “Learning System Management To Improve The Quality Of Learning Chemistry On Students Of State 8 Sma Negeri 8 Bekasi And Taman Students High School Of Bekasi”. International Journal of Educational Research & Social Sciences , vol. 3, no. 5, Oct. 2022, pp. 1927-34, doi:10.51601/ijersc.v3i5.428.