New Versions of Liu-type Estimator in Weighted and non-weighted Mixed Regression Model. Baghdad Science Journal, Iraq, Baghdad, v. 17, n. 1(Suppl.), p. 0361, 2020. DOI: 10.21123/bsj.2020.17.1(Suppl.).0361. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/5022.. Acesso em: 3 may. 2024.