Heri Purnawan and Subiono (2022) “Barisan Aritmetika Bertingkat dengan Menggunakan Interpolasi Lagrange”, Limits: Journal of Mathematics and Its Applications, 19(2), pp. 145–154. vailable at: https://journal.its.ac.id/index.php/limits/article/view/5398 (ccessed: 6December2025).