HOUSILA P. SINGH; SURYA K. PAL. A New Chain Ratio-Ratio-Type Exponential Estimator Using Auxiliary Information in Sample Surveys. International Journal of Mathematics And its Applications, [S. l.], v. 3, n. 4 - B, p. 37–46, 2015. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/495. Acesso em: 17 may. 2024.