Buentello Martínez, C. P.; Valenzuela Salazar, N. L.; Gómez, L. A.; Villarreal Sánchez, V. L. Percepción De La filosofía De RSE, De Directivos De Mypes Del Sector Servicios En Piedras Negras Coahuila: How CSR Philosophy Is Perceived by Service Based MSE Managers in Piedras Negras, Coahuila. Revista RELAYN 2021, 5, 167-185.