REZEKI, S. M. CASE STUDY OF UNDERACHIEVER STUDENTS IN FOUNDATION HIGH SCHOOL OF HARAPAN MANDIRI MEDAN. Psikologi Prima, [S. l.], v. 2, n. 2, p. 129-135, 2020. DOI: 10.34012/psychoprima.v2i2.876. Disponível em: http://jurnal.unprimdn.ac.id/index.php/Psikologi/article/view/876. Acesso em: 8 may. 2024.