The Antidepressant Effect of Fluoxetine and Mozart K448 Combination Therapy on Hippocampal Serotonin and BDNF Levels, Pangemanan, Lisa, Irwanto Irwanto, and Maramis Margarita M. , Pharmacognosy Journal, April 2023, Volume 15, Issue 2, p.325-328, (2023)