NAZIFA HAFIZA; T. EDYANSYAH; CHALIRAFI; HERIYANA. THE INFLUENCE OF WORD OF MOUTH, PRODUCT QUALITY AND SALES PROMOTION ON THE PURCHASE DECISION OF BRAND SHAMPOO PRODUCTS HEAD & SHOULDERS BY THE COMMUNITY IN JEUMPA DISTRICT REGENCY BUREAUCRACY. International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET), [S. l.], v. 4, n. 12, p. 3173–3181, 2025. DOI: 10.54443/ijset.v4i12.1118. Disponível em: https://ijset.org/index.php/ijset/article/view/1118. Acesso em: 26 apr. 2026.