Sumba Bustamante RY, Santistevan Villacreses KL, Parrales Reyes JE, Mero Choez OJ. Value chain of an Ecuadorian restaurant: Factors that increase its competitive advantage. RUNAS [Internet]. 2025Sep.18 [cited 2025Sep.19];6(12):e250313. Available from: https://runas.religacion.com/index.php/about/article/view/313