Diana Fitri, and Soffi Soffiatun. “The Impact of Learning Discipline and Family Environment on Students’ Academic Performance in Economics Subject for Grade X at SMA PGRI 22 Serpong”. International Journal of Economics Education Research (IJEER), vol. 5, no. 2, Feb. 2025, pp. 1-11, https://openjournal.unpam.ac.id/index.php/IJEER/article/view/47853.