YUNUS, Muhammad. TESTING OF STRATIFIED CLUSTER SAMPLING TECHNIQUE TO PRODUCE UNBIASED ESTIMATOR FOR PARAMETER OF POPULATION. El-Ghiroh : Jurnal Studi Keislaman, [S. l.], v. 15, n. 2, p. 17–26, 2018. DOI: 10.37092/el-ghiroh.v15i2.63. Disponível em: https://jurnal.staibsllg.ac.id/index.php/el-ghiroh/article/view/63. Acesso em: 4 oct. 2025.