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Ologunleko, E. F. .; Ogunyinka, . . P. I. .; Ologunleko, O. E. .; Sodipo, A. A. . . . . . . . Generalized Multivariate Mixture Ratio Estimators for the Population Mean in Multi-Phase Sampling Using Multi-Auxiliary Characteristics. IQJOSS 2026, 23, 104-116.