Affirmed. Department of Revenue v. Ford, 438 So.2d 798, 800 (Fla. 1983), cert. denied, 466 U.S. 946, 104 S.Ct. 2145, 80 L.Ed.2d 532 (1984); Deltona Corp. v. Bailey, 336 So.2d 1163, 1168 (Fla. 1976) (taxpayer who fails to show that he has been singled out and specifically discriminated against vis-a-vis other taxpayers in the county has no cause of action to challenge assessment on equal protection grounds).