QIAN, Zhang. RESEARCH ON THE PERFORMANCE IMPACT OF MARKETING EXPENDITURE FROM THE PERSPECTIVE OF DIFFERENTIATION STRATEGY IN PHARMACEUTICAL ENTERPRISES. МІЖНАРОДНА ЕКОНОМІКА В УМОВАХ КЛІМАТИЧНИХ ЗМІН: ГЛОБАЛЬНІ ВИКЛИКИ, [S. l.], p. 106–110, 2026. Disponível em: https://conference.wunu.edu.ua/index.php/mevukzgv/article/view/1646.. Acesso em: 4 jul. 2026.