HAMIDZADEH, S. M.; AZIZ, A.; MOHAMED, M. A.; VAIDYANATHAN, S.; JOHANSYAH, M. D. CHAOS CONTROL IN PERMANENT MAGNET SYNCHRONOUS MOTOR BY SLIDING MODEL CONTROLLER WITH LYAPUNOV OBSERVER UNDER UNKNOWN INPUTS. BAREKENG: Jurnal Ilmu Matematika dan Terapan, v. 20, n. 1, p. 0541-0556, 24 nov. 2025.