SARIFAH, I. INCREASING THE COMPETENCE OF TEACHERS OF SD KEPULAUAN SERIBU DKI JAKARTA PROVINCE THROUGH ASSISTANCE IN DEVELOPING PERFORMANCE ASSESSMENT INSTRUMENTS IN MATHEMATICS LEARNING. International Education Trend Issues, [S. l.], v. 1, n. 2, p. 219 - 231, 2023. DOI: 10.56442/ieti.v1i3.238. Disponível em: https://ijble.com/index.php/ieti/article/view/238. Acesso em: 6 aug. 2025.