Valen Tino Rosi, Ari Muzakir, A. Haidar Mirza, and Fitri Purwaningtias. 2026. “Comparing Latent Dirichlet Allocation and Non-Negative Matrix Factorization for Topic Modeling of User Complaints in the Access by KAI Application”. International Journal of Education, Vocational and Social Science 5 (03), 8123-38. https://doi.org/10.63922/ijevss.v5i03.5952.