SHWETA KHANDELWAL, PALLAVI AHUJA. A study of impact of promotion mix on service quality of adventure sports companies in Delhi-NCR. European Economic Letters (EEL), [S. l.], v. 15, n. 1, p. 2427–2439, 2025. DOI: 10.52783/eel.v15i1.2637. Disponível em: https://www.eelet.org.uk/index.php/journal/article/view/2637. Acesso em: 18 nov. 2025.