A. J. Neira Paredes, C. Rodríguez Armijos, L. G. Salinas Rojas, A. B. Crespo Córdova, and C. R. Carpio Ayala, “Sectoral structure of the industry of the province of Loja - Ecuador: Analogy with the variables of classification by company size”, Tesla rev. cient., vol. 3, no. 2, p. e238, Dec. 2023, doi: 10.55204/trc.v3i2.e238.