TY - JOUR TI - Influence diagnostic in beta ridge regression model: Simulation and application AU - KHAN, J.A. AU - AKBAR, A. AU - KIBRIA, B.M.G. JO - Sigma Journal of Engineering and Natural Sciences PY - 2026 VL - 44 SP - 490 EP - 500 DO - 10.14744/sigma.2026.1994 ER -