Lisal T Sonny, “THE EFFECT OF PIRACETAM SUPPLEMENTATION ON COGNITIVE FUNCTION AND HOMOFANILIC ACID LEVELS IN SCHIZOPHRENIC PATIENTS TREATED WITH RISPERIDONE”, J Popl Ther Clin Pharmacol, vol. 30, no. 16, pp. 822–830, Aug. 2023, doi: 10.53555/jptcp.v30i16.2574.