BRAR, Vinaydeep; KUMAR, Atul; RAMGADE, Atul. Problems in Evaluating the Effectiveness of Sales Promotion Activities. International Journal of Multidisciplinary: Applied Business and Education Research, Malang, Indonesia, v. 3, n. 7, p. 1239–1243, 2022. DOI: 10.11594/ijmaber.03.07.02. Disponível em: https://ijmaberjournal.org/index.php/ijmaber/article/view/520.. Acesso em: 5 jul. 2025.