0185-1616 0185-1616 S0185-16162022000200053 10.22201/fcpys.24484903e.2022.56.82560 Mexico 00 08 2022 00 08 2022 56 53 60

1980 1980 139-261 1980 265-437 1980 591-777 1980 1980 1980 439-690 9-364 365-590 1981