Real Pérez, G.L., Hassan Marrero, N., Regueira Lezcano, M.D. and Hidalgo Avila, A.A. 2018. Valuation of the work and rest systems. Case study: varadero (Cuba). Turismo y Sociedad. 24, (Nov. 2018), 149–160. DOI:https://doi.org/10.18601/01207555.n24.07.