VIPLAV KUMAR SINGH; RAJESH SINGH. A Generalised Family of Estimator for Estimating Unknown Variance Using Two Auxiliary Variables. Mathematical Journal of Interdisciplinary Sciences, [S. l.], v. 3, n. 2, p. 193–207, 2015. DOI: 10.15415/mjis.2015.32017. Disponível em: https://mjis.chitkara.edu.in/index.php/mjis/article/view/114. Acesso em: 29 mar. 2024.