Nazifa Hafiza, T. Edyansyah, Chalirafi, & Heriyana. (2025). 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), 4(12), 3173–3181. https://doi.org/10.54443/ijset.v4i12.1118