Effendy, E., B. Loebis, N. Amir, and Y. Siregar. “SNP8NRG433E1006 Neuregulin-1 Genetic Variation in Bataks Ethnic With Schizophrenia Paranoid and Healthy Control”. Bali Medical Journal, vol. 3, no. 2, Jan. 2021, pp. 58-64, https://balimedicaljournal.id/index.php/BaliMedJ/article/view/151.