Development of an Interactive E-Module Based on the Ethnomathematics of Candi Lor Nganjuk as a Learning Tool for Sequences and Series Ruli Setyorini, Lina Rihatul Hima, Ika Santia Jurnal Pendidikan Matematika Vol. 17 No. 2 2026 DOI 10.36709/jpm.v17i2.375