WAZIR, Shumaila; MUHAMMD ATIF; HUSSAIN, Mujeeb. Improved exponential ratio-cum-regression type estimators under stratified random sampling for population mean. VFAST Transactions on Mathematics, [S. l.], v. 13, n. 2, p. 75–89, 2025. DOI: 10.21015/vtm.v13i2.2054. Disponível em: https://vfast.org/journals/index.php/VTM/article/view/2054. Acesso em: 14 may. 2026.