HARYANI, Desti; SUBAGJO, Ardo; HAMDANI, Muhamad; ALI HASAN, Qodri; WIDYANTI, Novie. ANALYSIS OF THE DIFFICULTIES OF CLASS X STUDENTS OF SMKN 4 PALANGKA RAYA IN SOLVING TRIGONOMETRY PROBLEMS. JURNAL PENDIDIKAN, [S. l.], v. 23, n. 1, p. 29–38, 2022. DOI: 10.52850/jpn.v23i1.4667. Disponível em: https://e-journal.upr.ac.id/index.php/JPN/article/view/4667. Acesso em: 13 okt. 2025.