KUMALASARI, Maria Yashinta Putri; AGUSTIN, Atalya; HIDAYAT, Dylmoon. THE IMPLEMENTATION OF STUDENT PORTFOLIOS TO IMPROVE GRADE 9 STUDENTS’ POSITIVE ATTITUDES TOWARD ASSESSMENTS AT AN INTERNATIONAL SCHOOL IN BOGOR. JOHME: Journal of Holistic Mathematics Education, [S. l.], v. 4, n. 1, p. 102–112, 2020. DOI: 10.19166/johme.v4i1.1614. Disponível em: https://ojs.uph.edu/index.php/JOHME/article/view/1614. Acesso em: 13 mar. 2025.