Widayati W, Mega Mardarisa. Pengembangan Bahan Ajar dengan Pendekatan Etnomatematika pada Materi Bangun Ruang Sisi Lengkung. JPBB [Internet]. 2025 Feb. 12 [cited 2026 Aug. 14];4(1):58-76. Available from: https://globalnusapress.org/index.php/jpbb/article/view/5541