Small Area Estimation Using a Projection Estimator with a Multilevel Regression Model R package saeproj.multilevel version 0.1.0 Provides tools for small area estimation using a projection estimator with a linear multilevel working model. The main function fits a multilevel model to a smaller survey containing the response variable and auxiliary predictors, predicts outcomes in a larger projection survey, and computes domain-level estimates with a design-based residual correction. Software Depends: R (>= 3.5) Imports: cli, dplyr, lme4, reformulas, survey, stats, utils Suggests: knitr, rmarkdown, testthat (>= 3.0.0) Nazlya Rahma Susanto <susantonazlya@gmail.com> Comprehensive R Archive Network (CRAN) Nazlya Rahma Susanto [aut, cre], Azka Ubaidillah [aut] MIT + file LICENSE (https://CRAN.R-project.org/package=saeproj.multilevel/LICENSE) 2026-07-11 application/tgz https://CRAN.R-project.org/package=saeproj.multilevel doi:10.32614/CRAN.package.saeproj.multilevel