Björn Thórsson, and Sigrún Ólafsdóttir. “Parental Involvement and Its Influence on Academic Achievement: A Cross-Cultural Analysis”. International Journal of Educational Development 1, no. 1 (January 30, 2024): 16–20. Accessed March 22, 2026. https://international.aspirasi.or.id/index.php/IJED/article/view/123.