KARIM, Maryam Ali; SALLOOM, Maher Yahya; LAFTA, Yasar N. Experimental Optimization of PLC-Integrated Multi-Loop PID Control for a Three-Level Electro-Hydraulic Elevator Using PSO and Cheetah Optimizer. Engineering, Technology & Applied Science Research, Greece, v. 16, n. 2, p. 33836–33853, 2026. DOI: 10.48084/etasr.17143. Disponível em: https://mail.etasr.com/index.php/ETASR/article/view/17143. Acesso em: 11 jun. 2026.