KUMAR GANGELE, R.; KUMAR VISHWAKARMA, G.; KUMAR CHOUBEY, S. An Efficient Class on Linear Combination of Ratio Type Estimators for Estimating the Population Mean. Thailand Statistician, [S. l.], v. 20, n. 2, p. 284–292, 2022. Disponível em: https://ph02.tci-thaijo.org/index.php/thaistat/article/view/246341. Acesso em: 16 sep. 2026.