SARI, Tommi. Improving Mathematics Teaching Teacher Performance In Class On Learning Applications active Learning Method Joint Model Lectures And Group Work In Elementary Schools State 022 Tambusai. Indonesian Journal of Basic Education, [S.l.], v. 5, n. 1, p. 25 - 29, apr. 2022. ISSN 2615-8523. Available at: <https://e-jurnal.stkiprokania.ac.id/index.php/IJOBE/article/view/514>. Date accessed: 28 july 2026.