Ngabu, W., R. Fitriani, H. Pramoedyo, and A. Astuti. “CLUSTER FAST DOUBLE BOOTSTRAP APPROACH WITH RANDOM EFFECT SPATIAL MODELING”. BAREKENG: Jurnal Ilmu Matematika Dan Terapan, Vol. 17, no. 2, June 2023, pp. 0945-54, doi:10.30598/barekengvol17iss2pp0945-0954.