Prayas Sharma และผู้แต่งคนอื่นๆ. (2026) Efficient class of hybrid estimators for population variance in two-phase sampling. <i>Maejo International Journal of Science and Technology</i>, <i>20</i>(1), 91.Prayas Sharma และผู้แต่งคนอื่นๆ. "Efficient class of hybrid estimators for population variance in two-phase sampling". Maejo International Journal of Science and Technology 20 (2026):91.Prayas Sharma และผู้แต่งคนอื่นๆ. Efficient class of hybrid estimators for population variance in two-phase sampling. Maejo University:ม.ป.ท. 2026.