Rachmat, Hadi, Dr Budi Susetyo, Dr Indahwati, and Dr Rahmawati. “Applied of Multivariate Multilevel Modeling for Student Cognitive Achievement Analysis in AKSI 2019 Survey”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 55, no. 1 (January 15, 2021): 190–200. Accessed April 27, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/12158.