Rasmitadila, .; Widyasari, .; Prasetyo, T.; Putri, A. A. CHALLENGES IN THE IMPLEMENTATION OF INSTRUCTIONAL STRATEGY MODEL BASED ON THE BRAIN NATURAL LEARNING SYSTEMS FOR INCLUSIVE CLASSROOM: Received: 19th September 2021; Revised: 20th December 2021, 3rd January 2022, 9th January 2022; Accepted: 10th January 2022. pijtel 2022, 5, 112-128.