MIRJAFAROVA A. J. The "Mystery Shopper" Research Method for Evaluating the Work of the Hotel Staff. EUROPEAN JOURNAL OF BUSINESS STARTUPS AND OPEN SOCIETY, [S. l.], v. 4, n. 12, p. 134–136, 2024. Disponível em: https://inovatus.es/index.php/ejbsos/article/view/4765. Acesso em: 18 dec. 2024.