SUPIANA SUPIANA; ELIH YULIAH. Optimization of the sustainable professional development program to improve islamic education teachers’ performance. Elementary Education Online, [S. l.], v. 20, n. 1, p. 1513–1521, 2021. Disponível em: https://ilkogretim-online.org/index.php/pub/article/view/3493. Acesso em: 15 jan. 2025.