Nasution, N. M., E. Effendy, M. M. Amin, and I. R. Siregar. “Effect of Aerobic Exercise in Positive and Negative Symptoms in Schizophrenia”. Open Access Macedonian Journal of Medical Sciences, vol. 9, no. T3, May 2021, pp. 178-81, doi:10.3889/oamjms.2021.6324.