Calderon, M. F. B., Cristerna, D. E., Zozoaga, A. S. S. and Munoz, M. A. M. V. (2022) “Qualitative Approach for the Design Stage of a Performance Measurement System to Increase Gross Profit in Restaurants. Case Study: Hard Rock Cafe Mexico Restaurants”, European Scientific Journal, ESJ, 18(19), p. 58. doi: 10.19044/esj.2022.v18n19p58.