Jupri A, Marwati R, Sispiyati R, Rosjanuardi R. The development of mathematics teacher professional competencies through social media. jel [Internet]. 2022 Jan. 6 [cited 2024 May 19];8(1):308-22. Available from: https://e-journal.hamzanwadi.ac.id/index.php/jel/article/view/4782