Isnurani, Sastro G, Santi S, Huzaziah E. The Effect of Self-Directed Learning on Students’ Motivation and Mathematical Disposition in Geometry Instruction. JEP [Internet]. 2026 Sep. 30 [cited 2026 Oct. 4];8(2):193-200. Available from: https://jepjurnal.stkipalitb.ac.id/index.php/hepi/article/view/609