Surya Ulina Lumbantobing, Violin Kristian Yolanda Purba, Yohana Dameria Sianturi, Rais Sa Hidayati Hasibuan, Syahrial Fahmy Dalimunthe. ANALISIS KESALAHAN SISWA SMA DALAM MENYELESAIKAN SOAL MATEMATIKA PADA MATERI TRIGONOMETRI. Trigonometri [Internet]. 2024 May 30 [cited 2025 Sep. 2];2(2):54-66. Available from: https://ejournal.warunayama.org/index.php/trigonometri/article/view/3439