Pasaribu, A.A., Sadik, K. and Kurnia, A. 2026. MIXED-EFFECT MODELS WITH RESTRICTED MAXIMUM LIKELIHOOD (REML), BOOT-STRAPPED REML AND BAYESIAN INFERENCE IN APPLICATION OF GAPMINDER DATA. BAREKENG: Jurnal Ilmu Matematika dan Terapan. 20, 3 (Apr. 2026), 1985-1998. DOI:https://doi.org/10.30598/barekengvol20iss3pp1985-1998.