BEASLEY, Judge.
Defendant appeals his conviction of aggravated child molestation. OCGA § 16-6-4 (c).
1. Defendant's contention that the evidence was insufficient to sustain the verdict fails.
Defendant attacks the credibility of the State's witnesses. However, this was an issue for the jury under proper instructions from the court. Pattillo v. State, 250 Ga. 510, 513 ( 299 S.E.2d 710) (1983); Brown v. State, 192 Ga. App. 864, 865 (1) ( 386 S.E.2d 734) (1989). The four-year-old victim testified that defendant performed the acts charged against him in the indictment. Her testimony was corroborated by another child who was an eyewitness, although this was not required. Gilbert v. State, 191 Ga. App. 574 (1) ( 382 S.E.2d 630) (1989). On review of a jury verdict we examine the evidence in a light most favorable to, and resolve all conflicts in favor of, that verdict. Smith v. State, 250 Ga. 729, 730 ( 300 S.E.2d 798) (1983); Anderson v. State, 245 Ga. 619, 622 (1) ( 266 S.E.2d 221) (1980); Jones v. State, 188 Ga. App. 398, 399 ( 373 S.E.2d 86) (1988). An application of these principles yields the conclusion that the evidence was sufficient for a rational trier of fact to find defendant guilty beyond a reasonable doubt. Rayburn v. State, 194 Ga. App. 676 (1) ( 391 S.E.2d 780) (1990).
2. The remaining enumerations of error are deemed abandoned pursuant to Court of Appeals Rule 15 (c) (2) because they are not supported by argument or by citation of authority. Whatley v. State, 197 Ga. App. 489 (2) ( 398 S.E.2d 807) (1990); Hollingsworth v. State, 195 Ga. App. 502 (2) ( 394 S.E.2d 131) (1990). Insofar as the enumerations themselves contain argument, it is conclusory and insufficient to raise justiciable issues.
Judgment affirmed. Banke, P. J., and Carley, J., concur.
DECIDED SEPTEMBER 3, 1991.