2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/221870We presented the results of several statistical tests of the randomness in the angular sky-distribution of gamma-ray bursts in BATSE Catalog. Thirteen different tests were presented based on Voronoi tesselation, Minimal spanning tree and Multifractal spectrum for five classes (short1, short2, intermediate, long1, long2) of gamma-ray bursts, separately. The long1 and long2 classes are distributed randomly. The intermediate subclass, in accordance with the earlier results of the authors, is distributed non-randomly. Concerning the short subclass earlier statistical tests also suggested some departure from the random distribution, but not on a high enough confidence level. The new tests presented in this article suggest also non-randomness here.in GAMMA-RAY BURSTS 2007: Proceedings of the Santa Fe ConferenceCosmology and Nongalactic AstrophysicsHigh Energy Astrophysical Phenomenatext