Kumalasari, Maria Yashinta Putri, Atalya Agustin, and Dylmoon Hidayat. 2020. “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 4 (1):102-12. https://doi.org/10.19166/johme.v4i1.1614.