SIRINGORINGO, F. N.; PANJAITAN, B. .; MARBUN, R. C. . Relationship of Family Economic Factors and Parental Attention to Study Achievement in Grade VIII High School Students State 2 Sumbul. Indonesian Journal of Christian Education and Theology, [S. l.], v. 2, n. 2, p. 189–198, 2023. DOI: 10.55927/ijcet.v2i2.6524. Disponível em: https://journal.formosapublisher.org/index.php/ijcet/article/view/6524. Acesso em: 21 may. 2026.