0185-3309 0185-3309 S0185-33092019000300009 10.18781/r.mex.fit.1905-4 Mexico Mexico México 00 00 2019 00 00 2019 37 3 479 485

2008 28 1-13 2018 9 191-202 2012 14 2 2 75-89 2017 121 452-65 2012 7 7 7 SIAP-SAGARPA 2012 00 00