Soesanto, R. H., K. P. S. Dirgantoro, and R. H. Y. Silitonga. “The Significance of Guidance in Mathematics Education Courses: Before Vs During the Pandemic”. International Journal of Social Sciences and Humanities, vol. 5, no. 2, June 2021, pp. 140-51, doi:10.29332/ijssh.v5n2.1149.