Simbolon, Rika Lusiana, et al. “Application of Small Area Estimation With HB Beta Model to Estimate Child Labor Proportion in Kalimantan ”. Jurnal Matematika Sains Dan Teknologi, vol. 27, no. 1, Mar. 2026, pp. 22-36, doi:10.33830/jmst.v27i1.13094.2026.