Annisa Putri, Ibnu Imam Arif, Rindhi Yani Hasibuan, Yehiskiel Erwin Tambunan, Syairal Fahmy Dalimunthe. ANALISIS KESULITAN SISWA KELAS IX - 8 PADA MATA PELAJARAN SISTEM PERSAMAAN LINIER DUA VARIABEL ( SPLDV ) DI SMPN 1 PERCUT SEI TUAN. Trigonometri [Internet]. 2024 May 28 [cited 2025 Sep. 2];2(2):32-4. Available from: https://ejournal.warunayama.org/index.php/trigonometri/article/view/3384