Ojeda López, R.N. and Mul Encalada, J. 2015. Environmental management and its relation to competitiveness: a study of micro, small and medium enterprises in the state of Yucatan, Mexico. Tec Empresarial. 9, 2 (Aug. 2015), Pág. 41–49. DOI:https://doi.org/10.18845/te.v9i2.2361.