Liandra Khairunnisa, Hafiz Nurdiansyah. THE EFFECT OF THE APPLICATION OF POSITIVE PSYCHOLOGY ON THE DEVELOPMENT OF HUMAN RESOURCE PERFORMANCE AT PT MANDIRI ABADI PERMAI KOTA MEDAN. IJEBAS [Internet]. 2025 Jun. 30 [cited 2025 Nov. 28];5(3):1374-81. Available from: https://radjapublika.com/index.php/IJEBAS/article/view/3387