“Development of a Deep Mathematics DEMA Model of Sequences and Series Based on North Kalimantan Batik for Class X DKV SMK Negeri 4 Tarakan”, JITER, vol. 1, no. 1, pp. 29–44, Aug. 2026, Accessed: Oct. 06, 2026. [Online]. Available: https://journal.cakrajiyaedukasi.com/jiter/article/view/3