Cervantes Aldana, Fernando Javier. “MARKETING STRATEGIES IN INFORMAL BUSINESS: MEDIA OF PROMOTION AND ADVERTISING”. FACE: Revista de la Facultad de Ciencias Económicas y Empresariales 23, no. 3 (November 28, 2023). Accessed October 18, 2024. https://ojs.unipamplona.edu.co/index.php/face/article/view/2615.