Ardana, P., and G. Trisnapradika. “Multi-Tier Architecture Design for Scalable and Effective Non-Formal Learning: A Redesign of Serat Kartini Women’s School LMS”. Journal of Information Systems and Informatics, Vol. 7, no. 4, Dec. 2025, pp. 3826-48, doi:10.63158/journalisi.v7i4.1341.