Pius Nderitu Kihara. Model Calibration at Different Stages in Cluster Sampling; Use of Penalized Splines in Semiparametric Estimation. RAMRCS-V4 [Internet]. 2021 Nov. 12 [cited 2026 Jun. 7];:1-14. Available from: https://stm.bookpi.org/RAMRCS-V4/article/view/4867