STRATEGI PEMBELAJARAN KONSEP LUAS SEGITIGA DI SEKOLAH DASAR: INTEGRASI PENDEKATAN ETNOMATEMATIKA DAN PROJECT-BASED LEARNING BERDASARKAN ANALISIS KEBUTUHAN GURU. Sindoro [Internet]. 2025 Nov. 28 [cited 2026 Oct. 2];18(1):1471-80. Available from: https://cibjournal.com/index.php/sindoro/article/view/2243