Subhash Kumar Yadav และผู้แต่งคนอื่นๆ. (2026) Optimal approach to enhancing population mean estimation using auxiliary parameters. <i>Maejo International Journal of Science and Technology</i>, <i>20</i>(1), 40.Subhash Kumar Yadav และผู้แต่งคนอื่นๆ. "Optimal approach to enhancing population mean estimation using auxiliary parameters". Maejo International Journal of Science and Technology 20 (2026):40.Subhash Kumar Yadav และผู้แต่งคนอื่นๆ. Optimal approach to enhancing population mean estimation using auxiliary parameters. Maejo University:ม.ป.ท. 2026.