E. Harrell, Frank2019-01-302024-06-292019-01-302024-06-292015978-3-319-19425-7https://drs.ess.gov.et/handle/123456789/39101enRegression analysis ; Linear models StatisticsRegression Modeling Strategies With Applications to Linear Models, Logistic and Ordinal Regression, and Survival AnalysisBook