Siregar, Iskandarsyah. “Verbal Communication of Schizophrenic Patients Due to Neurotransmitter Distortion”. QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama 13, no. 2 (September 29, 2021): 543-556. Accessed April 26, 2024. https://ejournal.insuriponorogo.ac.id/index.php/qalamuna/article/view/1037.