Roy, Andri. “Analysis of the Influence Between Study Plan, Locus of Control Learning Achievement at BSM 1 High School in 2024”. ProBisnis : Jurnal Manajemen 15, no. 1 (February 26, 2024): 01–08. Accessed September 28, 2024. http://ejournal.joninstitute.org/index.php/ProBisnis/article/view/445.