Haryani, Desti, Ardo Subagjo, Muhamad Hamdani, Qodri Ali Hasan, and Novie Widyanti. “ANALYSIS OF THE DIFFICULTIES OF CLASS X STUDENTS OF SMKN 4 PALANGKA RAYA IN SOLVING TRIGONOMETRY PROBLEMS”. Jurnal Pendidikan 23, no. 1 (June 27, 2022): 29–38. Accessed December 22, 2024. https://e-journal.upr.ac.id/index.php/JPN/article/view/4667.